CVE-2026-59692Gstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback
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.
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.5 | HIGH | 3.1redhat (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Details
- CVE ID
- CVE-2026-59692
- Status
- Awaiting Analysis
- Assigner (CNA)
- redhat
- Published
- Jul 9, 2026
- Last modified
- 2026-11-04 23:17 UTC
- Weaknesses
- CWE-121 · Stack-based Buffer Overflow
Affected Products
As published by the CNA in the CVE record.
Red HatRed Hat Enterprise Linux 100 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 80 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 90 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support0 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 60 version ranges
No version detail published.
Red HatRed Hat Enterprise Linux 70 version ranges
No version detail published.
References
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:47179
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:47180
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:47731
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:54658
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:54659
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:54660
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:54664
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:54665
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:54752
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:56658
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:56772
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-59692
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2497344
- gitlab.freedesktop.org https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/99
- gitlab.freedesktop.org https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5172