Red Hat Linux Security Advisories & CVEs
12275 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited backstops use a safe source cadence
Android app · Google Play
Monitor Red Hat CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
Security advisories for your Red Hat release
Pick your distribution release to see every advisory issued for it and its severity mix. Fixes ship as errata — keep the system patched. This is the release's advisory history, not a per-package scan.
Official source
Red Hat Security Data API
Red Hat Enterprise Linux errata (RHSA) via the official Red Hat Security Data API — CVE severity, CVSS and affected packages. A credential-free official source.
Latest Red Hat advisories
Medium [CVE-2026-75145] Out-of-bounds memory access due to integer narrowing conversion
FFmpeg before commit b4c199c contains an incorrect integer narrowing conversion in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The OBU size is cast to long before comparison against the remaining frame size. On targets where long is 32 bits, including 64-bit Windows, sufficiently large OBU size values are sign-flipped by the narrowing cast, producing a negative value that passes the payload size check. This allows an oversized OBU to bypass the safety bound on affected platforms, leading to out-of-bounds memory access when the oversized value is subsequently used as a copy length. A flaw was found in FFmpeg. An incorrect integer narrowing conversion in the AV1 RTP packetizer can lead to an out-of-bounds memory access. This occurs when processing specially crafted AV1 RTP (Real-time Transport Protocol) packets, where a large OBU (Operating Block Unit) size is incorrectly handled due to a casting issue on certain platforms. An attacker could exploit this to cause a denial of service or potentially execute arbitrary code. The ffmpeg package is not shipped in base Red Hat Enterprise Linux. It is available through EPEL, Red Hat Enterprise Linux AI, and as a bundled dependency in Red Hat OpenShift AI container images. The vulnerable code resides in the AV1 RTP packetizer (libavformat/rtpenc_av1.c), which is compiled and shipped in all FFmpeg builds across these products.
Medium [CVE-2026-19672] Python tarfile module: Directory traversal allows creation of empty directories outside extraction destination
The tarfile module's tar and data extraction filters created directories outside the destination for members whose name leaves the destination and returns to it, such as../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given. Member contents are still extracted inside it. To return to the destination the member's name must contain the destination directory's own final component, so extraction into a secure randomised directory is not affected. This affects POSIX platforms only. On Windows,.. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX (Portable Operating System Interface) platforms. This occurs when processing a specially crafted archive containing member names that use directory traversal sequences (e.g., `../`) to leave and then re-enter the target directory. While only empty directories are created outside the destination, this can lead to unintended file system modifications. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N). Weakness: CWE-22.
Medium [CVE-2026-76878] aodh / python-watcher: cross-project alarm enumeration and webhook missing authorization
In OpenStack Aodh before 22.0.1, the alarm list API bypasses project scoping when the all_projects query parameter is set to false. The API checks for the presence of the all_projects key rather than its value; a true value enforces the administrator-only policy, but a false value removes the key and skips the branch that normally restricts results to the caller's project. A non-admin user with the reader role can list alarms from all projects, exposing alarm actions containing trust webhook URLs, Heat signal endpoints, project IDs, and user IDs. The parameter can also be combined with a foreign project_id to target a specific project's alarms. A related concern is that OpenStack Watcher does not apply authorization to its webhook trigger endpoint. Any authenticated user who learns an audit's webhook URL, for example from this leaked Aodh alarm metadata, can start an EVENT audit and its associated action plan regardless of their own project or role. The webhook endpoint has lacked policy enforcement since its introduction in the Ussuri release (Watcher 4.0.0). A flaw was found in OpenStack Aodh and Watcher. In Watcher, the webhook trigger endpoint does not enforce oslo.policy authorization, allowing any authenticated user who learns an audit webhook URL to trigger EVENT audits and associated action plans regardless of project or role. RHOSP 16.2 is affected.
Medium [CVE-2026-76231] Arbitrary command execution via unsanitized dependency names
Renovate versions from 32.135.0 before 40.33.0 contain a command injection vulnerability in the hermit manager where user-provided dependency names are appended to install and uninstall commands without proper sanitization. Attackers with repository write access can provide maliciously named hermit dependencies to execute arbitrary commands on the machine running Renovate. A flaw was found in Renovate. This flaw has a MODERATE impact on Renovate. The version of Renovate shipped by Red Hat is beyond the upstream fix (40.33.0); the vulnerable hermit-manager code is not present in the shipped version, so Red Hat's product is not affected. Red Hat severity: Moderate — CVSS 6.7 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-78.
Medium [CVE-2026-76228] Arbitrary Code Execution via malicious Gradle Wrapper properties
Renovate versions >=32.124.0 and before 42.68.5 (and Mend renovate-ce/renovate-ee before 13.3.0) contain a command injection vulnerability in Gradle Wrapper artifact handling. When Renovate processes Gradle Wrapper updates, it invokes a wrapper update command via a shell (e.g. /bin/sh -c..../gradlew:wrapper --gradle-distribution-url ). If an attacker supplies a malicious gradle-wrapper.properties whose distributionUrl contains shell command substitution syntax such as $(...), the shell evaluates it before Gradle parses the URL, resulting in arbitrary command execution in the Renovate runtime. Exploitation requires the attacker to introduce the malicious file into a repository that Renovate scans; the issue occurs even when allowScripts is disabled. A flaw was found in Renovate. This allows an attacker to execute unauthorized commands on the system running Renovate. Red Hat does not ship or use an affected version of Renovate. Red Hat severity: Moderate — CVSS 6.7 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-78.
Medium [CVE-2026-76229] Arbitrary Command Injection via kustomize manager
Renovate versions from 39.218.0 before 40.33.0 contain an arbitrary command injection vulnerability in the kustomize manager where user-provided chart names are appended to helm pull commands without proper sanitization. Attackers with repository write access can craft malicious kustomization.yaml files with specially crafted chart names to execute arbitrary commands on the Renovate host machine. A flaw was found in Renovate. Red Hat does not ship or use an affected version of Renovate. Red Hat severity: Moderate — CVSS 6.7 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-78.
Medium [CVE-2026-76217] Arbitrary File Read via Crafted Parameters
GitPython versions before 3.1.58 fail to validate options passed to git rm and git checkout commands in IndexFile.remove() and Head.checkout(). Attackers can supply --pathspec-from-file and --pathspec-file-nul parameters to read arbitrary files accessible to the process, with full file contents returned in GitCommandError.stderr. A remote attacker with low privileges could exploit this by supplying crafted parameters, such as --pathspec-from-file and --pathspec-file-nul. This vulnerability allows for arbitrary file disclosure, enabling the attacker to read any file accessible to the GitPython process. Exploitation requires an application to pass untrusted, attacker-controlled input directly as the path/pathspec argument to these GitPython methods; in normal use these arguments are supplied by the application or developer rather than by a remote adversary. Red Hat products that bundle GitPython use it as an internal build and automation helper with developer-controlled arguments and do not expose these parameters to untrusted input, so the vulnerable code cannot be controlled by an adversary in those products, which are therefore not affected. The GitPython library packages shipped in Red Hat OpenStack Platform contain the vulnerable code; those affected streams are out of support scope for this fix. Red Hat rates the impact of this flaw as Moderate.
Medium [CVE-2026-16440] Denial of Service via crafted.class file
Denial of Service via crafted.class file. Red Hat rates this moderate (CVSS 5.7). Weakness: CWE-787. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat package: java-1.8.0-ibm.
Medium [CVE-2026-76166] mod_cluster Advertise Listener: unauthenticated DoS via crafted multicast datagram
A flaw was found in mod_cluster's AdvertiseListenerImpl (org.jboss.modcluster core module). A single crafted UDP multicast datagram with a valid HTTP status line and a "Server:" header but without the "Date:", "Digest:", and "Sequence:" headers triggers a NullPointerException in verifyDigest() that is not caught by the worker thread's exception handler. This causes the advertise listener thread to terminate permanently. The failure is silent (isListening() continues to return true) and persists until the node is restarted. The crash occurs before the AdvertiseSecurityKey comparison, so deployments with a configured security key are still affected. Red Hat severity: Moderate — CVSS 4.3 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-476. Affected Red Hat products: Red Hat JBoss Enterprise Application Platform 7; Red Hat JBoss Enterprise Application Platform 8; Red Hat JBoss Enterprise Application Platform Expansion Pack; Red Hat JBoss Web Server 5; Red Hat JBoss Web Server 6; Red Hat JBoss Web Server 7; Red Hat Single Sign-On 7. Will not fix / out of support: Red Hat JBoss Web Server 5. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-75900] Out-of-bounds read in SWTPM_NVRAM_CheckHeader due to sizeof(pointer) vs sizeof(struct) mismatch
An out-of-bounds read vulnerability was found in swtpm's SWTPM_NVRAM_CheckHeader() function. The entry guard checks the buffer length against sizeof(bh), where bh is a pointer, instead of sizeof(*bh), the actual struct size. This allows an undersized buffer to pass validation, causing a 2-byte heap overread on 64-bit systems (6 bytes on 32-bit) when accessing the totlen field. This may cause daemon termination on some platforms and leaks heap data to the log. Red Hat rates this issue as Moderate impact. An attacker with access to the control channel can send an 8-byte state blob that passes this guard; the subsequent read of bh->totlen at offset 6 overreads the heap allocation by 2 bytes. The out-of-bounds value is then printed to the swtpm log, leaking a small amount of adjacent heap data. This is distinct from CVE-2022-23645, which added validation on the hdrsize field below this guard but did not fix the entry length check. Red Hat severity: Moderate — CVSS 6.1 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H). Weakness: CWE-125. Affected Red Hat products: Red Hat Enterprise Linux 10; 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: swtpm.
Medium [CVE-2026-76014] Denial of Service via null pointer dereference in wget.c
A vulnerability has been found in BusyBox up to 1.30.1. This vulnerability affects unknown code of the file networking/wget.c of the component FEATURE_WGET_TIMEOUT Handler. Such manipulation of the argument -T leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The name of the patch is 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff. A patch should be applied to remediate this issue. A flaw was found in BusyBox. This occurs when the attacker manipulates the -T argument, leading to a denial of service. This vulnerability, which affects BusyBox versions up to 1.30.1, leads to a denial of service as the wget process crashes. Red Hat products shipping BusyBox versions above 1.30.1 are not affected by this vulnerability. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-476. Affected Red Hat products: Red Hat Enterprise Linux 6. Red Hat lists Red Hat Hardened Images as not affected. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: busybox.
Medium [CVE-2026-76925] TOCTOU race condition allows symlink redirection
A flaw was found in Flatpak. A Time-of-check to time-of-use (TOCTOU) race condition exists in the `org.freedesktop. SystemHelper` component. This vulnerability occurs because a privileged `chmod` operation executes before the OSTree repository validation within the `Deploy()` function. An attacker can exploit this timing window to redirect symlinks to arbitrary files, potentially leading to unauthorized file manipulation or information disclosure. Red Hat severity: Moderate — CVSS 5.8 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L). Weakness: CWE-367. 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: flatpak.
Low [CVE-2026-76891] Denial of Service via sharkd crash
Crash in sharkd in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service A flaw was found in the sharkd component of Wireshark. A remote attacker could exploit this vulnerability, which requires user interaction and has high attack complexity, by triggering a crash. Red Hat Enterprise Linux 10 and Red Hat In-Vehicle OS ship Wireshark 4.4.2, which is within the affected range (4.4.0–4.4.17). Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L). Weakness: CWE-248. Red Hat lists Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: wireshark.
Low [CVE-2026-76885] Denial of Service via Tektronix K12xx file parsing
Tektronix K12xx file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service A flaw was found in Wireshark. This vulnerability, a buffer over-read, occurs when the Tektronix K12xx file parser processes a specially crafted file. Red Hat Enterprise Linux 6, 7, 8, and 9 ship Wireshark versions prior to the affected range and are not vulnerable. Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L). Weakness: CWE-125. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
Low [CVE-2026-76888] Heap-based Buffer Overflow in RDP dissector leads to Denial of Service
RDP protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service A flaw was found in Wireshark. A remote attacker could exploit a heap-based buffer overflow vulnerability within the RDP (Remote Desktop Protocol) dissector. By crafting a malicious RDP packet, an attacker could cause the Wireshark application to crash, leading to a denial of service. Red Hat Enterprise Linux 6, 7, 8, and 9 ship Wireshark versions prior to the affected range and are not vulnerable. Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L). Weakness: CWE-120. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
Low [CVE-2026-76887] Denial of service via heap-based buffer overflow in dissection engine
Crash in the Wireshark dissection engine in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service A flaw was found in Wireshark. Exploitation requires a user to process a specially crafted network packet, leading to a crash of the application. Red Hat Enterprise Linux 6, 7, 8, and 9 ship Wireshark versions prior to the affected range and are not vulnerable. Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L). Weakness: CWE-120. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
Low [CVE-2026-76884] Denial of Service via ERF file parser crash
ERF file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service A flaw was found in Wireshark. A remote attacker could exploit a buffer over-read vulnerability in the ERF (Extensible Record Format) file parser. This could lead to a denial of service, making the application unavailable to legitimate users. Red Hat Enterprise Linux 6 through 9 ship Wireshark versions 1.x through 3.x, which predate the introduction of the vulnerable code in version 4.4.0 and are therefore not affected by this flaw. 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). Weakness: CWE-130. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
Critical [CVE-2026-76044] Arbitrary code execution due to a race condition in USB
Race condition in USB in Google Chrome prior to 151.0.7922.169 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High) This could potentially lead to the execution of arbitrary code outside of the browser's security sandbox, allowing the attacker to gain further control over the system. Exploitation requires a compromised renderer process and user interaction with a specially crafted HTML page, enabling a significant security bypass. Red Hat severity: Important — CVSS 9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H). Weakness: CWE-368.
Critical [CVE-2026-18963] Unauthenticated account takeover via reset-credentials flow bypass
A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials. The Red Hat Product Security team has assessed the severity of this vulnerability as Critical, given that it can be exploited by an unauthenticated remote attacker without any user interaction. Successful exploitation allows an attacker to gain full access to any user account by bypassing the email verification step in the password recovery process. The vulnerability's root cause is improper state validation within the reset-credentials authentication flow. Weakness: CWE-640. Affected Red Hat products: Red Hat build of Keycloak 26.4; Red Hat build of Keycloak 26.4.15; Red Hat build of Keycloak 26.6; Red Hat build of Keycloak 26.6.6. Red Hat lists Red Hat JBoss Enterprise Application Platform Expansion Pack; Red Hat Single Sign-On 7 as not affected. Red Hat fixing advisory: RHSA-2026:56519, RHSA-2026:56520, RHSA-2026:56524, RHSA-2026:56523.
Critical [CVE-2026-12564] Automation-controller: automation-controller: kubernetes service account token exfiltration via hashicorp vault credential ssrf
A flaw was found in the AAP Controller's HashiCorp Vault credential plugin. An authenticated attacker with credential-creation privileges can exfiltrate the service account token, gaining Kubernetes API access to the control plane namespaces with full pod CRUD and secret read permissions, including database credentials and the Django SECRET_KEY. The vulnerability is particularly impactful in AAP Cloud (managed service) environments where the Kubernetes control plane is managed by Red Hat and tenant isolation is a security boundary. On-premise deployments are also affected, though the impact is lower since the administrator already has access to the infrastructure. The vulnerable code path exists in all AAP versions that ship the hashivault credential plugin with kubernetes_role authentication support. Red Hat severity: Critical — CVSS 9.6 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N). Weakness: CWE-918. Affected Red Hat products: Red Hat Ansible Automation Platform 2. Red Hat does not currently list a fixing RHSA for this CVE.