Red Hat Linux RHEL & SELinux Vulnerabilities & Security Advisories
1634 advisories tracked · Red Hat Security Data API · 2 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Red Hat Linux advisory that VulniPulse classified as RHEL & SELinux, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 31 critical, 618 high, 814 medium, 169 low.
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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 RHEL & SELinux advisories
Low [CVE-2026-104029] Sssd: sssd: denial of service via out-of-bounds read in autofs responder
A flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS). Red Hat rates this vulnerability as a Low impact because exploitation is restricted to local attackers and primarily leads to responder termination or instability without granting privilege escalation or data leakage. The autofs responder in SSSD must be explicitly enabled and active for the vulnerable UNIX domain socket to be present. Additionally, any resulting crash affects only the autofs responder daemon rather than the core authentication services or entire operating system. Red Hat severity: Low — 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; Red Hat OpenShift Container Platform 4. Will not fix / out of support: Red Hat Enterprise Linux 6. Red Hat does not currently list a fixing RHSA for this CVE.
Low [CVE-2026-105326] Cups: cups: argument injection in mailto notifier via notify-recipient-uri
An argument injection flaw was found in CUPS. When email notification is configured, the CUPS scheduler accepts printer subscription requests that supply a mailto notify-recipient-uri. The mailto notifier passes the recipient address to the configured sendmail program without ensuring it cannot be interpreted as command-line options. A remote attacker who can reach the CUPS service could supply a crafted recipient value starting with "-" to influence sendmail behavior. Successful exploitation depends on the installed mail transfer agent and CUPS network exposure, and may lead to execution of attacker-controlled commands with the privileges of the CUPS service user. This vulnerability is rated Low because exploitation requires multiple environmental conditions beyond the CUPS code flaw alone. The vulnerable mailto notifier logic is present in CUPS packages shipped in Red Hat Enterprise Linux, but practical impact on RHEL is limited: RHEL typically provides Postfix's sendmail-compatible wrapper, which does not support the traditional sendmail -C configuration option used in public proof-of-concept chains, and many systems do not install or enable an MTA for CUPS notifications. By default, cupsd listens only on the local loopback interface unless administrators explicitly configure remote access.
Low [CVE-2026-105217] Sensitive token disclosure via disabled TLS certificate verification
Sensitive token disclosure via disabled TLS certificate verification. Red Hat rates this low (CVSS 3.7). Weakness: CWE-295. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: cockpit.
Low [CVE-2026-105083] Security policy bypass via alternate XML DOCTYPE declaration
Security policy bypass via alternate XML DOCTYPE declaration. Red Hat rates this low (CVSS 3.9). Weakness: CWE-1286. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Low [CVE-2026-94483] Information disclosure via SSRF in Image Optimization
Information disclosure via SSRF in Image Optimization. Red Hat rates this low (CVSS 3.7). Weakness: CWE-918. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer; Red Hat package: firefox; Red Hat package: thunderbird.
Low [CVE-2026-94544] Information disclosure via shared cache fills in Draft Mode
Information disclosure via shared cache fills in Draft Mode. Red Hat rates this low (CVSS 3.7). Weakness: CWE-524. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer; Red Hat package: firefox; Red Hat package: thunderbird.
Low [CVE-2026-103004] Information disclosure via cache key omission in nested cache handlers
Information disclosure via cache key omission in nested cache handlers. Red Hat rates this low (CVSS 3.7). Weakness: CWE-524. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer; Red Hat package: firefox; Red Hat package: thunderbird.
Low [CVE-2026-102621] Denial of Service via integer overflow in SplashClip
Denial of Service via integer overflow in SplashClip. Red Hat rates this low (CVSS 3.3). Weakness: CWE-190. Red Hat lists fixing advisory RHSA-2026:74469 with package poppler-main-26.08.0-1.2.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: poppler; Red Hat package: compat-poppler022.
Low [CVE-2026-102620] Data corruption via integer overflow in FoFiTrueType::cvtSfnts
Data corruption via integer overflow in FoFiTrueType::cvtSfnts. Red Hat rates this moderate (CVSS 3.3). Weakness: CWE-190. Red Hat lists fixing advisory RHSA-2026:74469 with package poppler-main-26.08.0-1.2.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: poppler; Red Hat package: compat-poppler022.
Low [CVE-2026-102635] Information disclosure via crafted GIF file
Information disclosure via crafted GIF file. Red Hat rates this low (CVSS 3.7). Weakness: CWE-908. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Low [CVE-2026-35191] Traffic amplification Denial of Service via QUIC packet over-accounting
Traffic amplification Denial of Service via QUIC packet over-accounting. Red Hat rates this low (CVSS 3.7). Weakness: CWE-358. Red Hat lists fixing advisory RHSA-2026:74162 with package openssl-main-3.5.9-0.1.hum1, openssl3-main-3.5.9-0.1.hum1. Affected products named by the advisory: Red Hat Developer Hub; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 15 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat JBoss Core Services; and 11 more.
Low [CVE-2026-35189] Denial of Service via excessive memory allocation in CRL distribution point processing
Denial of Service via excessive memory allocation in CRL distribution point processing. Red Hat rates this low (CVSS 3.7). Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:74162 with package openssl-main-3.5.9-0.1.hum1, openssl3-main-3.5.9-0.1.hum1. Affected products named by the advisory: Red Hat Developer Hub; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 15 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat JBoss Core Services; and 11 more.
Low [CVE-2026-97027] Denial of service via unsanitized keys in exported Desktop Entry / D-Bus Service files
Denial of service via unsanitized keys in exported Desktop Entry / D-Bus Service files. Red Hat rates this low (CVSS 3.6). Weakness: CWE-20. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2026-97026] World-writable temporary child repositories in system-helper cache path
World-writable temporary child repositories in system-helper cache path. Red Hat rates this low (CVSS 3.9). Weakness: CWE-378. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2026-97025] World-readable OCI authentication token in system-helper cache path
World-readable OCI authentication token in system-helper cache path. Red Hat rates this low (CVSS 3.2). Weakness: CWE-378. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2026-97399] Denial of Service via out-of-bounds read in strncasecmp
Denial of Service via out-of-bounds read in strncasecmp. Red Hat rates this low (CVSS 3.7). Weakness: CWE-125. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat package: glibc; Red Hat package: compat-glibc.
Low [CVE-2026-96284] Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following
A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control. Red Hat estimates the CVSSv3.1 vector of CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N. Exploitation requires the attacker to be a local, authenticated user able to trigger a system-wide OCI image import via the flatpak-system-helper D-Bus service (AV:L, PR:L). This depends on the uncommon, non-default environmental precondition that a system OCI repository is configured (AC:H). No interaction from another party is required (UI:N). The vulnerable and impacted components remain within the same overall flatpak client/helper security authority (S:U). While some host file content can leak via this symlink-following behavior, disclosure surfaces only through the attacker's own crafted import under the rarer system-OCI-repository precondition, rather than through a broadly repeatable read of arbitrary files (C:L). There is no integrity or availability impact (I:N/A:N). Red Hat severity: Low — CVSS 2.5 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-59. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
Low [CVE-2026-96282] Flatpak: flatpak: extension metadata path traversal file existence oracle
A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at arbitrary paths, and host directory listings can be disclosed to sandboxed applications using the extension. Additionally, unvalidated extension metadata can cause extension content to be mounted at unintended locations inside the sandbox. Red Hat estimates the CVSSv3.1 vector of CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N. Exploitation requires a user to install a malicious Flatpak extension and use it with an application (AV:N, PR:N). The victim must specifically use a malicious extension in combination with a consuming application, and then launch that application (AC:H, UI:R). When Flatpak launches an application, it performs host-side file operations inside extension content directories using path-based APIs that follow symlinks without confinement; a malicious extension can place symlinks pointing at arbitrary host paths, which are followed both when checking for the.ref lock marker file and when iterating merge_dirs directories. These operations run at the invoking user's own privilege level rather than via the privileged system-helper (S:U). While the flaw allows probing for file/directory existence and disclosing filenames via reflected directory listings, no file contents are disclosed (C:N).
Low [CVE-2026-96283] Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoing pull
By calling org.freedesktop. Flatpak. SystemHelper. CancelPull on another user's pull, the pull is not actually cancelled but removed from internal tracking, making it impossible for the owning user to stop it. Ongoing pulls cannot be stopped. Red Hat estimates the CVSSv3.1 vector of CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L. Exploitation requires the attacker to be a local, authenticated user on the same multi-user system as the victim, able to reach the org.freedesktop. Calling CancelPull on a pull ID belonging to another user removes that pull from the system-helper's internal tracking rather than actually cancelling it, and this requires no special preconditions beyond knowing/targeting another user's active pull, and no interaction from the victim (AC:L, UI:N). No data is disclosed or altered (C:N/I:N). The impact is a narrow availability effect: the targeted pull operation becomes untrackable and cannot subsequently be cancelled by its owner. This affects one specific in-progress operation rather than the system or service as a whole (A:L). Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-862. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2025-1218] Denial of Service via out-of-bounds read in mysqlnd wire protocol parser
Denial of Service via out-of-bounds read in mysqlnd wire protocol parser. Red Hat rates this low (CVSS 3.7). Weakness: CWE-125. Red Hat lists fixing advisory RHSA-2026:70720 with package php-main-8.5.11-2.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 3 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: php8.4.