Skip to content
Fencer Intel
low 3.7

CVE-2026-14935 json

Gstreamer1-plugins-bad-free: gstreamer: webrtcbin accepts remote sdp without a=fingerprint due to inverted presence check

published 4mo ago modified 3d ago also EUVD-2026-42051

cvss
3.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

A logic vulnerability was found in GStreamer's webrtcbin component. The _check_sdp_crypto() function contains an inverted boolean condition that causes it to accept remote SDP offers or answers that lack the required a=fingerprint attribute, while incorrectly rejecting those that include it. An attacker with the ability to intercept and modify WebRTC signaling messages could exploit this to bypass the SDP-level DTLS certificate fingerprint binding, weakening defenses against man-in-the-middle attacks on media streams.

Patch / fix

  • gst-plugins-bad1.0 Debian 12 1.22.0-4+deb12u8
  • gst-plugins-bad1.0 Debian 14 1.28.5-1

debian advisories DEBIAN-CVE-2026-14935

  • gstreamer-plugins-bad SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +1 more 1.20.1-150400.3.29.1
  • gstreamer-plugins-bad SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 1.22.0-150500.3.34.1
  • gstreamer-plugins-bad SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 1.26.7-160000.3.1
  • gstreamer-plugins-bad SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Package Hub 15 SP7 +2 more 1.24.0-150600.4.9.1

suse advisories SUSE-SU-2026:3133-1SUSE-SU-2026:3125-1SUSE-SU-2026:22752-1SUSE-SU-2026:22817-1SUSE-SU-2026:3058-1

  • gstreamer-plugins-bad openSUSE Leap 16.0 1.26.7-160000.3.1

opensuse advisories openSUSE-SU-2026:21370-1

Is CVE-2026-14935 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-14935 updated cvss 3.7

gstreamer1-plugins-bad-free: gstreamer: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check

  • Red Hat Enterprise Linux 6 gstreamer-plugins-bad-free, gstreamer-plugins-bad-free-extras Red Hat Enterprise Linux 7 gstreamer-plugins-bad-free, gstreamer1-plugins-bad-free, gstreamer1-plugins-bad-free-gtk Red Hat Enterprise Linux 8 gstreamer1-plugins-bad-free Red Hat Enterprise Linux 9 gstreamer1-plugins-bad-free, gstreamer1-plugins-bad-free-libs Red Hat Enterprise Linux 10 gstreamer1-plugins-bad-free
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
4mo ago

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-670 Always-Incorrect Control Flow Implementation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.