Stack Buffer Overflow in GStreamer's DTLS Plugin
CVE-2026-59692

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
9 July 2026

What is CVE-2026-59692?

A vulnerability has been identified in GStreamer's DTLS plugin, where a stack buffer overflow occurs during the DTLS handshake due to insufficient bounds checking. An unauthenticated remote attacker can exploit this flaw by sending a certificate with an oversized Subject Distinguished Name, which exceeds the allocated 2048-byte stack buffer. This exploitation can lead to a process crash and result in denial of service, affecting the availability of the software.

References

https://access.redhat.com/security/cve/CVE-2026-59692
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2497344
issue-trackingx_refsource_REDHAT
https://gitlab.freedesktop.org/gstreamer/gstreamer-securi...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Clouditera Security (Clouditera), NSFOCUS (NSFOCUS), and Z.ai Security (Z.ai) for reporting this issue.
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