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155 advisories across 32 monitored vendors.
Error condition not handled when configuring CRLs. Red Hat rates this low (CVSS 3.7). Weakness: CWE-390. Red Hat lists fixing advisory RHSA-2026:29203 with package tomcat11-main-11.0.23-0.1.hum1, tomcat10-main-10.1.56-1.hum1. Affected products named by the advisory: Red Hat Enterprise Linux; Red Hat Hardened Images.
Denial of service via heap-based buffer overflow in Bitcode File Handler. Red Hat rates this low (CVSS 3.3). Weakness: CWE-805. Red Hat lists fixing advisory RHSA-2026:7634 with package llvm21-main-21.1.8-6.hum1, llvm-main-21.1.8-1.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
Denial of Service via stack-based buffer overflow in StringMap::insert. Red Hat rates this low (CVSS 3.3). Weakness: CWE-120. Red Hat lists fixing advisory RHSA-2026:7634 with package llvm21-main-21.1.8-6.hum1, llvm-main-21.1.8-1.1.hum1. Affected products named by the advisory: Red Hat Enterprise Linux; Red Hat Hardened Images.
Unauthorized file metadata modification. Red Hat rates this low (CVSS 3.3). Weakness: CWE-279. Red Hat lists fixing advisory RHSA-2026:35272 with package nodejs20-main-20.20.2-1.hum1, nodejs:24-9080020260626074955.rhel9, nodejs:22-9080020260626075442.rhel9, nodejs25-main-25.9.0-1.1.hum1. Affected product named by the advisory: Red Hat Enterprise Linux 1. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Hardened Images.
Local server can be started without network permission via Permission API flaw. Red Hat rates this low (CVSS 3.3). Weakness: CWE-648. Red Hat lists fixing advisory RHSA-2026:35272 with package nodejs20-main-20.20.2-1.hum1, nodejs25-main-25.9.0-1.1.hum1, nodejs26-main-26.4.0-1.3.hum1, nodejs22-main-22.23.1-2.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux.
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Document#root= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage collection or finalization, leading to an invalid memory read or potentially a segfault. This vulnerability is fixed in 1.19.4. This vulnerability occurs due to insufficient validation when setting the document's root element, allowing a malicious document to trigger a memory error. This can lead to a heap use-after-free, potentially causing the application to crash and resulting in a Denial of Service (DoS). This could lead to application crashes and impact the availability of services that process untrusted XML or HTML content using Nokogiri. This is only triggered by a programming error. Red Hat ships Nokogiri as a dependency in several products including Red Hat 3scale API Management Platform, Red Hat Satellite, and Red Hat Enterprise Linux buildroot packages. All affected product versions ship Nokogiri prior to the 1.19.4 fix. This memory-safety issue affects only the CRuby implementation (libxml2). The JRuby implementation was not affected; the same input validation was added there for behavioral parity. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri’s CRuby native extension could leave a Ruby wrapper pointing to freed memory when replacing the value of an XML attribute. If Ruby code had already accessed an attribute child node, Nokogiri::XML::Attr#value= could free the underlying native child node while the wrapper remained reachable through the document node cache. A later use of the freed child node or a Ruby GC mark could dereference an invalid pointer, causing an invalid read and a possible segfault. This vulnerability is fixed in 1.19.4. The Nokogiri maintainers have evaluated this as low severity. Reaching it requires an unusual API-usage pattern that does not arise during normal use. The application must directly access an attribute's child node and then replace that same attribute's value via Attr#value= or #content=. Nokogiri 1.19.4 makes this pattern safe with no change to the public API. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-825. Affected Red Hat products: Red Hat 3scale API Management Platform 2; Red Hat Satellite 6. Red Hat does not currently list a fixing RHSA for this CVE.
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could crash the process. This vulnerability is fixed in 1.19.4. An attacker who can control the construction of Nokogiri node objects could exploit this to cause a Denial of Service. Red Hat severity: Low — CVSS 2.9 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-476. Affected Red Hat products: Red Hat 3scale API Management Platform 2; Red Hat Satellite 6. Red Hat does not currently list a fixing RHSA for this CVE.
"Remember me" cookie age is not verified on the server. This potentially allows an attacker to intercept a valid cookie and reuse it indefinitely, even after the configured expiration time has passed. This issue affects all Apache Shiro versions from 1.2.4 through 2.x, and 3.0.0-alpha-1, only when RememberMe functionality is enabled. Upgrade to version 3.0.0 or later, which fixes the issue. Red Hat severity: Low — CVSS 3 (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N). Weakness: CWE-294. Affected Red Hat products: Red Hat Fuse 7; Red Hat JBoss Enterprise Application Platform Expansion Pack. Red Hat does not currently list a fixing RHSA for this CVE.
GitLab has remediated an issue in GitLab EE affecting all versions from 18.6 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with limited permissions to access project information due to insufficient authorization checks.
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with maintainer-role permissions to make requests to internal network resources through mirror synchronization due to improper URL validation.
GitLab has remediated an issue in GitLab EE affecting all versions from 17.9 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with custom role permissions to view, create, or delete protected environment configurations despite CI/CD visibility being disabled for the project.
A flaw was found in KubeVirt's downward metrics virtio-serial server. The server reads guest requests using textproto.Reader.ReadLine(), which buffers input indefinitely until a newline character is received, with no length limit or read deadline. Red Hat has rated this issue as having Low security impact. The vulnerable code runs in virt-handler, a node-level DaemonSet; however, in OpenShift Virtualization, cgroup memory limits ensure the OOM kill is contained to the virt-handler pod and does not affect the node kernel or kubelet. Running VM workloads (QEMU processes) survive independently and continue operating — only management operations (live migration, graceful shutdown, monitoring updates) are temporarily disrupted. An administrator can recover by deleting the offending VirtualMachineInstance, after which virt-handler resumes normal operation on its next restart. The attack surface is limited to VMIs that explicitly configure a downwardMetrics virtio-serial device, which is not part of the default VM configuration. The blast radius is confined to a single node. Red Hat severity: Low — CVSS 3.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L). Weakness: CWE-770. Affected Red Hat products: Red Hat OpenShift Virtualization 4. Red Hat does not currently list a fixing RHSA for this CVE.
concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLock#release_write_lock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still running. Concurrent::ReadWriteLock#release_read_lock also decrements the shared counter even when no read lock is held. Calling it on a fresh lock changes the counter from 0 to -1, after which normal read acquisition raises Concurrent::ResourceLimitError. This is a synchronization correctness issue in the public Concurrent::ReadWriteLock API. This vulnerability is fixed in 1.3.7. A flaw was found in concurrent-ruby, a Ruby library for managing concurrent operations. The `Concurrent::ReadWriteLock` component contains a synchronization issue where write locks can be released by unauthorized threads. This could allow multiple threads to write concurrently, potentially leading to data corruption. Furthermore, an issue with read lock management can cause a denial of service (DoS) by preventing legitimate read operations. This is essentially a library misuse scenario. The attack requires local code execution in the same Ruby process AND use of the manual locking API (ReadWriteLock).
ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage() when processing connected-components artifacts with invalid indices. Attackers can trigger access violations by specifying malformed connected-components definitions via CLI, causing denial of service or potential code execution. By passing malformed connected-components definitions through the CLI, an attacker can cause a denial of service or potentially execute arbitrary code. Exploitation requires local user interaction via the CLI and can result in a denial of service or arbitrary code execution. Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L). Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. 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.
ImageMagick before 7.1.2-15 contains a memory leak vulnerability in multiple coders that write raw pixel data where allocated objects are not properly freed. Attackers can trigger this leak by processing specially crafted images, causing memory exhaustion and denial of service. A flaw was found in ImageMagick. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L). Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. 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.
Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different config object during traversal. This happens because the authorization layer uses string prefix matching and the /config traversal layer parses array indices numerically using strconv.Atoi(). This vulnerability is fixed in 2.11.3. A remote administrator with restricted access to specific configuration objects could bypass these limitations. This discrepancy allows an attacker to read and modify unauthorized configuration elements, undermining the principle of least privilege in remote administration. This Moderate-impact flaw in Caddy's remote administration API, which allows an authorization bypass due to differing interpretations of array indices, does not affect Red Hat products. The vulnerable code is not present in Red Hat's supported offerings. Red Hat severity: Moderate — CVSS 3.8 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N). Weakness: CWE-551. Red Hat lists Red Hat Hardened Images as not affected.
CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182. By accepting an authentication tag length of 4 bytes instead of the required 12 bytes, this vulnerability allows for a low-impact data integrity issue where the cryptographic validity of messages could be compromised. A Low-impact flaw in GnuPG's gpgsm component accepts an incorrect AES-GCM authentication tag length in CMS messages. This compromises cryptographic data integrity, though confidentiality and availability are unaffected. Red Hat severity: Low — CVSS 2.9 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N). 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; Red Hat Hardened Images. 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.
ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service. A flaw was found in ImageMagick. This ImageMagick flaw is rated as Low impact. The impact is limited to availability, and the attack requires specific conditions, making successful exploitation less probable in typical Red Hat deployments unless processing untrusted images. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-825. Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. 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.
A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service. This flaw is rated Low. A heap out-of-bounds read in OpenSSH's GSSAPI authentication component can lead to a denial of service. Exploitation requires `GSSAPIAuthentication` to be explicitly enabled, which is not the default configuration in Red Hat products, and a Kerberos environment providing authenticated `auth-indicators`. The impact is limited to the availability of the SSH authentication process. This vulnerability doesn't affect the upstream OpenSSH versions and is restricted to the versions as shipped with Red Hat Enterprise Linux. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-125. Affected Red Hat products: Red Hat Hardened Images; 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.