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Vulnerability · Published Jul 9, 2026 · Assigned by redhat

CVE-2026-59692Gstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback

High 7.5

In plain English

A high-severity stack buffer overflow in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 52.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN that exceeds the buffer, causing a stack buffer overflow and process crash, resulting in denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10gstreamer1-plugins-bad-free1.26.7-2.el10_2.6ALSA-2026:47180
AlmaLinux:8gstreamer1-plugins-bad-free1.16.1-9.el8_10.1ALSA-2026:47731
AlmaLinux:9gstreamer1-plugins-bad-free1.22.12-7.el9_8.3ALSA-2026:47179
AlmaLinux:10gstreamer1-plugins-bad-free-devel1.26.7-2.el10_2.6ALSA-2026:47180
AlmaLinux:8gstreamer1-plugins-bad-free-devel1.16.1-9.el8_10.1ALSA-2026:47731
AlmaLinux:9gstreamer1-plugins-bad-free-devel1.22.12-7.el9_8.3ALSA-2026:47179
AlmaLinux:10gstreamer1-plugins-bad-free-libs1.26.7-2.el10_2.6ALSA-2026:47180
AlmaLinux:9gstreamer1-plugins-bad-free-libs1.22.12-7.el9_8.3ALSA-2026:47179
Debian:12gst-plugins-bad1.01.22.0-4+deb12u8DEBIAN-CVE-2026-59692
Debian:13gst-plugins-bad1.0no fix listedDEBIAN-CVE-2026-59692
Debian:14gst-plugins-bad1.01.28.5-1DEBIAN-CVE-2026-59692
Rocky Linux:10gstreamer1-plugins-bad-free0:1.26.7-2.el10_2.6RLSA-2026:47180
Rocky Linux:8gstreamer1-plugins-bad-free0:1.16.1-9.el8_10.1RLSA-2026:47731
Rocky Linux:9gstreamer1-plugins-bad-free0:1.22.12-7.el9_8.3RLSA-2026:47179
Ubuntu:25.10gst-plugins-bad1.0no fix listedUBUNTU-CVE-2026-59692
Ubuntu:26.04:LTSgst-plugins-bad1.0no fix listedUBUNTU-CVE-2026-59692
Ubuntu:26.10gst-plugins-bad1.0no fix listedUBUNTU-CVE-2026-59692

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References