CVE-2026-14935Network attack vector

Man-in-the-middle protection bypass via inverted fingerprint check

Published Jul 7, 2026 · Updated Jul 7, 2026

Authentication bypass in GStreamer's webrtcbin component allows man-in-the-middle attackers to weaken DTLS media-stream identity binding. The _check_sdp_crypto() function in webrtcsdp.c inverts its fingerprint-presence test, accepting remote SDP without the required a=fingerprint attribute and rejecting SDP that contains it. Exploitation requires interception and modification of WebRTC signaling; lost SDP fingerprint enforcement exposes media streams to certificate substitution.

CVSS severity3.7
Low
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in GStreamer's webrtcbin component allows man-in-the-middle attackers to weaken DTLS media-stream identity binding. The _check_sdp_crypto() function in webrtcsdp.c inverts its fingerprint-presence test, accepting remote SDP without the required a=fingerprint attribute and rejecting SDP that contains it. Exploitation requires interception and modification of WebRTC signaling; lost SDP fingerprint enforcement exposes media streams to certificate substitution.

The record

CVE
CVE-2026-14935
Published
Jul 7, 2026
Updated
Jul 7, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 6
Classifications
CWE-670, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 6Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 7Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.

Published CVSS scores

3.7Red HatCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-670Always-Incorrect Control Flow Implementation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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