Quick answers
- Is CVE-2026-59692 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-59692 being exploited in the wild.
- How severe is CVE-2026-59692?
- High severity, with a CVSS score of 7.5, published 9 July 2026.
- Which products and versions are affected?
- Gstreamer Gst-Plugins-Bad Enterprise Linux 6, 7, 8, 9, 10.
- Is there a fix for CVE-2026-59692?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-59692 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-59692?
- Check whether you run Gstreamer Gst-Plugins-Bad at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A stack-based buffer overflow (CWE-121) exists in the openssl_verify_callback() function within GStreamer's DTLS plugin (gst-plugins-bad). The vulnerability occurs when the peer certificate's Subject Distinguished Name (DN) is printed into a fixed-size 2048-byte stack buffer using X509_NAME_print_ex() and BIO_read() without proper bounds checking. An unauthenticated remote attacker can trigger this by presenting a certificate with an oversized Subject DN during a DTLS-SRTP or WebRTC handshake. While the overflow can cause a process crash (DoS), exploitability for remote code execution is limited by stack canaries and the fact that the overflow content is escaped to printable ASCII. A fix is planned for GStreamer version 1.28.5.
Affected products
- Red Hat gst-plugins-bad-free Enterprise Linux 6, 7, 8, 9, 10
- GStreamer gst-plugins-bad 1.28.3
Timeline
- 2026-07-06: disclosed: Reported to Red Hat Bugzilla
- 2026-07-09: advisory: NVD publication date
References
- https://access.redhat.com/downloads/content/package-browser/
- https://access.redhat.com/security/cve/CVE-2026-59692
- https://bugzilla.redhat.com/show_bug.cgi?id=2497344
- https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/99
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5172