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Security advisories & CVEs
5200 advisories across 32 monitored vendors.
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Medium [CVE-2026-3644] Incomplete control character validation in http.cookies
Incomplete control character validation in http.cookies. Red Hat rates this moderate (CVSS 5.4). Weakness: CWE-791. Affected package(s): python3.12, python3, python3.14, rhui5/rhua-rhel9:1779798222, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:19019 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8.
Medium [CVE-2026-4271] Denial of Service via Use-After-Free in HTTP/2 server
Denial of Service via Use-After-Free in HTTP/2 server. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-416. Affected package(s): libsoup3. Resolved in Red Hat advisory RHSA-2026:17482 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
High [CVE-2025-14287] Arbitrary command execution via unsanitized container image names
Arbitrary command execution via unsanitized container image names. Red Hat rates this important (CVSS 7.8). Weakness: CWE-78. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat OpenShift AI (RHOAI).
High [CVE-2026-32640] Arbitrary code execution via sandbox escape due to improper object handling
Arbitrary code execution via sandbox escape due to improper object handling. Red Hat rates this important (CVSS 7.5). Weakness: CWE-915. Affected package(s): rhoai/odh-training-cuda124-torch25-py311-rhel9:1776243287, rhoai/odh-training-rocm62-torch24-py311-rhel9:1776272258, rhoai/odh-training-rocm62-torch25-py311-rhel9:1776272253, rhoai/odh-training-cuda121-torch24-py311-rhel9:1776243258. Resolved in Red Hat advisory RHSA-2026:10184 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-3084] Remote Code Execution via integer underflow in H.266 Codec Parser
Remote Code Execution via integer underflow in H.266 Codec Parser. Red Hat rates this important (CVSS 7.8). Weakness: CWE-191. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux 8.
High [CVE-2026-2921] Arbitrary code execution via RIFF palette integer overflow in AVI file handling
Arbitrary code execution via RIFF palette integer overflow in AVI file handling. Red Hat rates this important (CVSS 7.8). Weakness: CWE-190. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free, gstreamer-plugins-base, gstreamer-plugins-good. Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-3083] Remote Code Execution via Out-Of-Bounds Write in rtpqdm2depay
Remote Code Execution via Out-Of-Bounds Write in rtpqdm2depay. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free, gstreamer-plugins-base, gstreamer-plugins-good. Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-3086] Remote Code Execution via Out-Of-Bounds Write in H.266 Codec Parser
Remote Code Execution via Out-Of-Bounds Write in H.266 Codec Parser. Red Hat rates this important (CVSS 7.8). Weakness: CWE-787. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux 8.
High [CVE-2026-3085] Remote Code Execution via Heap-based Buffer Overflow in rtpqdm2depay
Remote Code Execution via Heap-based Buffer Overflow in rtpqdm2depay. Red Hat rates this important (CVSS 8.8). Weakness: CWE-1284. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free, gstreamer-plugins-base, gstreamer-plugins-good. Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-3082] Remote Code Execution via heap-based buffer overflow in JPEG parser
Remote Code Execution via heap-based buffer overflow in JPEG parser. Red Hat rates this important (CVSS 7.8). Weakness: CWE-120. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free. Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-3081] Arbitrary code execution via H.266 codec parsing stack-based buffer overflow
Arbitrary code execution via H.266 codec parsing stack-based buffer overflow. Red Hat rates this important (CVSS 7.8). Weakness: CWE-120. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-2923] Remote Code Execution via out-of-bounds write in DVB Subtitles handling
Remote Code Execution via out-of-bounds write in DVB Subtitles handling. Red Hat rates this important (CVSS 7.8). Weakness: CWE-787. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free. Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.6 Extended Update Support.
High [CVE-2026-2922] Remote Code Execution via out-of-bounds write in RealMedia Demuxer
Remote Code Execution via out-of-bounds write in RealMedia Demuxer. Red Hat rates this important (CVSS 7.8). Weakness: CWE-787. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free. Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9.6 Extended Update Support.
High [CVE-2026-2920] Arbitrary code execution via ASF file processing
Arbitrary code execution via ASF file processing. Red Hat rates this important (CVSS 7.8). Weakness: CWE-120. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free. Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.6 Extended Update Support.
High [CVE-2026-31899] Denial of Service via recursive <use> element amplification
Denial of Service via recursive element amplification. Red Hat rates this important (CVSS 7.5). Weakness: CWE-776. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-31806] Arbitrary code execution via crafted Remote Desktop Protocol (RDP) server messages
Arbitrary code execution via crafted Remote Desktop Protocol (RDP) server messages. Red Hat rates this important (CVSS 8.8). Weakness: CWE-131. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:6958 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-31883] Denial of Service via crafted audio data in RDP
Denial of Service via crafted audio data in RDP. Red Hat rates this moderate (CVSS 7.3). Weakness: CWE-191. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:19142 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1.
Medium [CVE-2026-31885] FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks
FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-125. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:19142 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1.
Medium [CVE-2026-31884] FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0
FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-369. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:19142 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1.
Medium [CVE-2026-29775] FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId
FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-787. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:19142 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1.