Red Hat Linux Security Advisories & Vulnerabilities
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Latest Red Hat advisories
Medium [CVE-2026-50659] .NET:.NET: Network Spoofing Vulnerability
Improper encoding or escaping of output in.NET allows an authorized attacker to perform spoofing over a network. A flaw was found in.NET. This allows the attacker to perform spoofing over a network, potentially deceiving users or systems into believing they are interacting with a trusted entity. The vulnerability affects integrity only and has no impact on confidentiality or availability (Red Hat CVSS 3.1 score 6.5, vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N), which matches the upstream severity assessment. The flaw affects the.NET 8.0, 9.0, and 10.0 release lines; streams shipping.NET outside these lines, such as the RHEL BR dotnet6.0 stream, and the OpenShift Dev Spaces UDI container image are marked not affected. This issue is handled as delegated: a fix is being pursued through the upstream.NET updates, and several affected Red Hat streams have already shipped the corrected packages. Weakness: CWE-838. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Hardened Images. Red Hat lists Red Hat OpenShift Dev Spaces as not affected.
Medium [CVE-2026-15712] HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-termination assumption
A heap buffer over-read vulnerability was discovered in libsoup's (versions: libsoup 3.0 to 3.7.0) HTTP/2 connection tracking framework. When the library processes an HTTP/2 GOAWAY frame, it improperly handles the "Additional Debug Data" payload by assuming the data stream is a safely NUL-terminated C-string. Because the parser lacks strict length-boundary verification before reading this data, a remote, unauthenticated attacker can intentionally send a malformed GOAWAY frame missing the appropriate null delimiter. This causes the library to read past the end of the allocated buffer, triggering an application crash that results in a denial of service (DoS), or potentially exposing fragments of memory contents. This vulnerability poses a moderate impact to system confidentiality and availability for software implementations leveraging libsoup for HTTP/2 client or server communications. An unauthenticated network adversary can manipulate frame characteristics to force memory parsing out-of-bounds without requiring special system privileges or user interaction. While primarily resulting in a denial of service via a segmentation fault, the risk of data exposure from adjacent heap allocations places this as a notable security boundary failure within the protocol decoding stack. Red Hat severity: Low — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-125.
Medium [CVE-2026-59888] com.fasterxml.jackson.core/jackson-databind: tools.jackson.core/jackson-databind: jackson-databind: @JsonIgnore bypass in Java Records
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.15.0 until 2.18.8, 2.21.4, and 3.1.4, Java Records using a PropertyNamingStrategy can bypass @JsonIgnore because POJOPropertiesCollector._removeUnwantedIgnorals() records an ignored component under its original implicit name before _renameUsing() applies the naming strategy, allowing the renamed JSON key to be assigned to the Record constructor parameter. This issue is fixed in versions 2.18.8, 2.21.4, and 3.1.4. Consequently, an untrusted client could set internal or privileged components from external input, potentially leading to unauthorized modification or disclosure of sensitive data. Moderate impact. This flaw in jackson-databind allows an attacker to bypass the @JsonIgnore annotation when deserializing Java Records that utilize a PropertyNamingStrategy. Red Hat products using affected versions of jackson-databind for deserialization of external input into Java Records with PropertyNamingStrategy are susceptible. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N). Weakness: CWE-915. Affected products named by the advisory: Red Hat AMQ Broker 7.13.6; Red Hat AI Inference Server 3.3; Red Hat Enterprise Linux AI 3.3; Red Hat Lightspeed (formerly Insights) for Runtimes 1.0; and 41 more.
Medium [CVE-2026-59884] Denial of Service via crafted BER input
pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER decoder shared by the CER and DER codecs parses long-form tags by accumulating continuation octets without an upper bound on the tag ID size, allowing a crafted input to force construction of an arbitrarily large integer with CPU cost growing quadratically and to trigger unhandled ValueError exceptions in Python 3.11+ error formatting paths. Any application decoding untrusted BER, CER, or DER input is affected. This issue is fixed in version 0.6.4. A remote attacker can exploit this by providing a specially crafted input, leading to the construction of an arbitrarily large integer. A flaw was found in pyasn1's BER decoder. Many common uses of pyasn1 involve parsing trusted certificates or local configuration and are not exposed to this flaw. The realistic impact is a denial-of-service of the consuming Python process, with automatic recovery in typical service deployments. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770. Affected products named by the advisory: Red Hat AI Inference Server 3.3; Red Hat AI Inference Server 3.4; Red Hat Enterprise Linux AI 3.3; Red Hat Hardened Images; and 33 more. Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4; Exploit Intelligence; and 29 more.
Medium [CVE-2026-59198] Information disclosure via TGA RLE encoder out-of-bounds read
Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0. This out-of-bounds read allows adjacent process heap memory to be copied into the generated TGA file, potentially leading to information disclosure. Exploitation requires the application to save attacker-influenced images in TGA format with RLE compression, which is an uncommon operation in affected Red Hat products. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L). Weakness: CWE-125. Affected Red Hat products: Lightspeed Core; OpenShift Lightspeed; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI); Red Hat Quay 3. Under investigation: Exploit Intelligence; Red Hat Ansible Automation Platform 2; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Satellite 6. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-59203] Denial of Service via crafted EPS file
Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open() to seek backwards to the same directive and parse it repeatedly in an infinite loop. This issue is fixed in version 12.3.0. A remote attacker could exploit this vulnerability by providing a specially crafted Encapsulated PostScript (EPS) file. The EPS parser incorrectly handles negative byte counts, causing the system to enter an infinite loop when processing the file. This can lead to a Denial of Service (DoS), making the affected system unresponsive. The impact is limited to denial of service via an infinite parsing loop. Exploitation requires the application to open a crafted EPS file, but does not lead to memory corruption or code execution. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-835. Affected Red Hat products: Lightspeed Core; OpenShift Lightspeed; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI); Red Hat Quay 3. Under investigation: Exploit Intelligence; Red Hat Ansible Automation Platform 2; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Satellite 6. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-15392] DBD::File: Arbitrary file read/write via symlink vulnerability
DBD::File versions before 1.651 for Perl do not ensure the table file is not a symlink to an untrusted location. The complete_table_name method builds the absolute table file path without checking whether the file is a symbolic link. A link inside the data directory can point to a table file at any path outside of the configured f_dir and f_dir_search directories. Callers of file-based drivers can read or write files outside of the data directory. This oversight allows a local attacker to create a symbolic link within the data directory that points to an arbitrary file outside of the intended data storage. Consequently, file-based drivers can be tricked into reading from or writing to unauthorized files, potentially leading to information disclosure or data corruption. This Moderate flaw in DBD::File allows a local attacker to achieve arbitrary file read and write access. Red Hat severity: Moderate — CVSS 6.3 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L). Weakness: CWE-59. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Will not fix / out of support: Red Hat Enterprise Linux 6. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: perl-dbi.
Medium [CVE-2026-15697] Remote object prototype pollution
A vulnerability was found in svgdotjs svg.js up to 3.2.5. Performing a manipulation results in improperly controlled modification of object prototype attributes. The attack may be initiated remotely. The project was informed of the problem early through an issue report but has not responded yet. A remote attacker could exploit a vulnerability in the `EventTarget.on` function, which improperly controls modifications to object prototype attributes. This could allow an attacker to manipulate object properties, potentially leading to unintended behavior or data alteration within the application. The impact is limited to the console and requires prior authentication. Red Hat severity: Moderate — CVSS 6.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L). Weakness: CWE-915. Affected Red Hat products: Multicluster Engine for Kubernetes; Red Hat Advanced Cluster Management for Kubernetes 2. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-15043] DBI::SQL::Nano: DBI::SQL::Nano: Incorrect SQL operator evaluation can lead to incorrect data filtering.
DBI::SQL::Nano versions from 1.42 before 1.651 for Perl have inverted = SQL operators on text. DBI::SQL::Nano, DBI's built-in mini-SQL engine, evaluated WHERE predicates incorrectly in some cases. In the non-numeric string branch of the is_matched method, = was evaluated using Perl's le operator. SQL::Nano is the fallback query engine for DBI's file-backed drivers (DBD::File, DBD::DBM, CSV-style drivers) whenever SQL::Statement is not installed, and is forced whenever DBI_SQL_NANO=1. Queries over such tables use these predicates directly. The impact depends on the context. Where an application relies on a WHERE clause to filter file-backed data for policy or authorization, an inverted = comparison silently returns the wrong rows. This vulnerability occurs because the engine incorrectly evaluates SQL operators for text comparisons, specifically inverting the logic for "less than or equal to" and "greater than or equal to" operations. This can lead to applications that rely on these comparisons for filtering data, such as for policy or authorization, silently returning incorrect results. A Moderate impact flaw in perl-DBI's SQL::Nano engine can lead to incorrect data filtering. This issue arises when applications use file-backed drivers with SQL::Nano as the fallback SQL engine, causing text comparison operators (` =`) to be inverted.
Medium [CVE-2026-0716 +1] incomplete fix for CVE-2026-0716: out-of-bounds read in libsoup websocket frame processing (unmasked path)
The fix for CVE-2026-0716 (commit 6ff7ef0, libsoup 3.6.6) placed the integer overflow guard inside the if (masked) block, leaving unmasked server-to-client frames unprotected. A malicious WebSocket server can send a crafted unmasked frame with a payload length near UINT64_MAX to trigger an OOB read in a libsoup-based client when max_incoming_payload_size is set to 0. This vulnerability is rated Moderate for Red Hat because it requires a non-default configuration where max_incoming_payload_size is explicitly set to 0 or unset in libsoup's WebSocket frame processing. In typical Red Hat deployments, this configuration is not enabled by default, limiting the exposure to memory disclosure or application instability. Red Hat severity: Moderate — CVSS 4.8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L). Weakness: CWE-125. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: libsoup3.
Medium [CVE-2026-12482] Arbitrary File Operations via Malicious Tar Archive Processing
A vulnerability in keras-team/keras version 3.12.0 allows an attacker to craft a malicious tar archive that bypasses the `filter_safe_tarinfos` validation in `keras/src/utils/file_utils.py`. Specifically, symlink entries are not subjected to the same `is_path_in_dir` validation as regular file entries, allowing symlinks to be created outside the intended extraction directory. This can lead to symlink-based file read, file overwrite, or directory escape attacks. The issue is particularly impactful on Python 3.10 and 3.11, where `filter_safe_tarinfos` is the sole defense against tar path traversal. This vulnerability is distinct from CVE-2025-12060 and other previously reported issues. A flaw was found in Keras. An attacker can exploit a vulnerability in the tar archive processing to bypass security validations. This allows for the creation of symbolic links (symlinks) outside of the intended directory, which could lead to unauthorized access to or modification of files on the system, or enable an attacker to navigate beyond restricted directories. This Moderate vulnerability in Keras, as used in Red Hat OpenShift AI components, allows an attacker to create arbitrary symlinks outside of the intended extraction directory when processing a specially crafted tar archive. Exploitation requires user interaction and has high attack complexity, which reduces the overall risk.
Low [CVE-2026-60082] Denial of Service via out-of-bounds read
DBI versions before 1.651 for Perl do not enforce statement handle consistency with the row. When the statement handle had no fields but the source row was non-empty, the internal row-buffer helper would read from a negative array index. This could be triggered by a caller supplying inconsistent metadata and rows to the prepare method. A flaw was found in perl-DBI, a database interface for Perl. This vulnerability arises when the DBI library processes inconsistent data, specifically when a statement handle lacks fields but is associated with a non-empty data row. This inconsistency can cause the internal row-buffer to attempt reading from an invalid memory location, an out-of-bounds read. Red Hat severity: Moderate — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-125. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: perl-dbi.
Low [CVE-2026-60081] DBI::ProfileData: Denial of Service due to unbounded path index
DBI::ProfileData versions before 1.651 for Perl do not limit the path index. The path index column of profile dump files is used to allocate an array of data for the parser. An unbounded value allows an attacker to specify a large index and consume available memory. This vulnerability allows an attacker to cause a Denial of Service (DoS) by providing a specially crafted input. The flaw exists because the software does not properly limit the path index when processing profile dump files, which can lead to excessive memory consumption. Red Hat severity: Moderate — CVSS 2.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L). Weakness: CWE-770. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: perl-dbi.
Low [CVE-2026-59084] Insufficient documentation for EncryptInterceptor may lead to insecure configurations
Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely configure the EncryptInterceptor were not clearly documented. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.13 through 9.0.119, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120 which fix the issue. Insufficient technical documentation regarding the secure configuration of the EncryptInterceptor component may lead to deployments with insecure settings. This vulnerability could allow an attacker to exploit misconfigurations that arise from unclear guidance, potentially compromising the confidentiality or integrity of data processed by the affected system. Without clear guidance on secure configuration, administrators might inadvertently deploy the interceptor in a way that weakens security, rather than a direct code flaw. This issue affects Red Hat products utilizing Apache Tomcat, including Red Hat Enterprise Linux and Red Hat JBoss Web Server. Red Hat severity: Low — CVSS 3.8 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N). Weakness: CWE-1188.
Low [CVE-2026-59083] Security constraint bypass via improper URL encoding in rewrite valve
Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue. A remote attacker could exploit this to bypass security constraints in certain configurations, potentially gaining unauthorized access or performing actions that should be restricted. Exploitation requires specific configurations and has high attack complexity, limiting its overall risk to Red Hat products. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-807. Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; and 16 more.
High [CVE-2026-15685] Denial of Service via improper array index validation in downloadBlob function
Ollama download Blob Improper Validation of Array Index Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Ollama. Authentication is not required to exploit this vulnerability. The specific flaw exists within the download Blob function. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated array. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-27277. A flaw was found in Ollama. An attacker can exploit this without authentication to disrupt the system's availability. This Important vulnerability in Ollama allows a remote, unauthenticated attacker to trigger a denial-of-service condition. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-787. Red Hat lists Migration Toolkit for Applications 8; Red Hat Ansible Automation Platform 2; Red Hat OpenShift AI (RHOAI) as not affected.
High [CVE-2026-15584] privileged host-chroot debug pods created in shared default namespace enable privilege escalation to node root
A privilege escalation vulnerability was found in the incluster-checks tool for OpenShift. The tool creates privileged debug pods with host filesystem access in the shared default namespace, where any user with the standard edit role can exec into them and obtain root access on cluster nodes. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-250. Affected Red Hat products: Pen Drive Powered by Red Hat Lightspeed. Red Hat does not currently list a fixing RHSA for this CVE.
High [CVE-2026-53365] fix zerocopy completion for multi-skb sends
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix zerocopy completion for multi-skb sends When a large message is fragmented into multiple skbs, the zerocopy uarg is only allocated and attached to the last skb in the loop. Non-final skbs carry pinned user pages with no completion tracking, so the kernel has no way to notify userspace when those pages are safe to reuse. If the loop breaks early the uarg is never allocated at all, leaking pinned pages with no completion notification. Fix this by following the approach used by TCP: allocate the zerocopy uarg (if not provided by the caller) before the send loop and attach it to every skb via skb_zcopy_set(), which takes a reference per skb. Each skb's completion properly decrements the refcount, and the notification only fires after the last skb is freed. On failure, if no data was sent, the uarg is cleanly aborted via net_zcopy_put_abort(). This issue was initially discovered by sashiko while reviewing commit 1cb36e252211 ("vsock/virtio: fix MSG_ZEROCOPY pinned-pages accounting") but was pre-existing. An issue in how user arguments (uargs) are handled for these buffers can lead to pinned user pages not being properly tracked or released.
High [CVE-2026-51537] Out-of-bounds read via malformed ForwardOpen requests
EIPStackGroup OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in Connection Manager handling of ForwardOpen requests when processing short malformed packets. An attacker can send a valid ENIP outer frame carrying a malformed CIP ForwardOpen/LargeForwardOpen request, causing the parser to continue reading fields even when request data is insufficient. This issue is remotely triggerable via network traffic and does not require authentication. A flaw was found in OpENer. This can cause the parser to read beyond the intended buffer, potentially leading to a denial of service or information disclosure. Red Hat severity: Important — CVSS 8.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H). Weakness: CWE-125. Red Hat lists Red Hat Hardened Images as not affected.
Medium [CVE-2026-60103] Denial of Service and information disclosure via crafted.blend file
Blender 3.0.0 through 5.1.2 contains an out-of-bounds read vulnerability that allows attackers to trigger a crash or read adjacent heap memory by supplying a crafted.blend file with a malicious signed short member_index value in the SDNA block. The member_index field is used as an array index into the sdna->members[] array in sdna_expand_names() without bounds validation, allowing any value outside the allocated range to produce an invalid pointer subsequently passed to strlen(), resulting in a SIGSEGV crash or unintended heap memory disclosure. A flaw was found in Blender. A remote attacker could exploit an out-of-bounds read vulnerability by providing a specially crafted.blend file. This vulnerability occurs when the application processes a malicious member_index value without proper validation, leading to an attempt to access memory outside of its allocated boundaries. Successful exploitation can result in a denial of service, causing the application to crash, or potentially lead to the disclosure of sensitive information from the system's memory. Red Hat severity: Moderate — CVSS 6.1 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H). Weakness: CWE-125.
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