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CVE-2026-14935 Red Hat CVE debrief

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. This vulnerability affects GStreamer deployments utilizing WebRTC functionality, particularly those prioritizing security against man-in-the-middle attacks on media streams. The vulnerability allows an attacker to bypass the SDP-level DTLS certificate fingerprint binding, potentially weakening defenses. The CVE record was published on 2026-07-07T16:16:38.010Z and has not been modified since then. The NVD entry is currently Received. Additional verification is needed to confirm affected deployments and validate vendor guidance.

Vendor
Red Hat
Product
Red Hat Enterprise Linux 10
CVSS
LOW 3.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-07
Original CVE updated
2026-07-08
Advisory published
2026-07-07
Advisory updated
2026-07-08

Who should care

Users of GStreamer who utilize WebRTC functionality and prioritize security against man-in-the-middle attacks on media streams should be aware of this vulnerability. This includes operators managing GStreamer deployments, platform administrators, vulnerability management teams, and security teams responsible for ensuring the security of media streams.

Technical summary

The vulnerability is located in the _check_sdp_crypto() function of GStreamer's webrtcbin component. An inverted boolean condition causes the function to improperly handle SDP offers or answers with or without the a=fingerprint attribute. This could allow an attacker to bypass the SDP-level DTLS certificate fingerprint binding, potentially weakening defenses against man-in-the-middle attacks on media streams.

Defensive priority

Given the low CVSS score of 3.7, this vulnerability is considered a low priority for immediate action but still requires attention, especially in high-risk environments, where compensating controls and monitoring may be necessary until patches are applied.

Recommended defensive actions

  • Review and update GStreamer to ensure the latest security patches are applied.
  • Implement additional monitoring for WebRTC signaling messages to detect potential exploitation attempts.
  • Consider compensating controls such as validating SDP offers and answers for the presence of the a=fingerprint attribute.
  • Perform an inventory of assets using GStreamer with WebRTC functionality to identify potential exposure.
  • Review current change management processes to ensure timely application of security patches.
  • Monitor for any suspicious WebRTC signaling activity that could indicate exploitation attempts.
  • Verify that all SDP offers and answers include the required a=fingerprint attribute to enhance protection.

Evidence notes

The CVE record was published on 2026-07-07T16:16:38.010Z and was last modified on 2026-07-07T17:16:35.753Z. The NVD entry is currently in the 'Received' status. Red Hat has references to this CVE in their security advisories and bugzilla entries. Additional verification is needed to confirm affected deployments and validate vendor guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-14935 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-14935

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-14935 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14935

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.