Red Hat Enterprise Linux 7/8/9/10 RTSP Digest Authentication Parsing null pointer dereference

Summaryinfo

A vulnerability has been found in Red Hat Enterprise Linux 7/8/9/10 and classified as critical. This affects an unknown function of the component RTSP Digest Authentication Parsing. Performing a manipulation results in null pointer dereference. This vulnerability was named CVE-2026-85150. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Red Hat Enterprise Linux 7/8/9/10. It has been classified as critical. This affects an unknown part of the component RTSP Digest Authentication Parsing. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

A NULL pointer dereference flaw was found in GStreamer's RTSP support library. The vulnerability occurs while parsing an Authorization or WWW-Authenticate header that uses Digest authentication. Specially crafted whitespace placement around a parameter's terminator can cause an internal length calculation to underflow, leading to a crash of the process parsing the header. On an RTSP server this can be triggered by a remote, unauthenticated attacker sending a single malformed request when the server has authentication enabled; the same flaw can also be triggered against an RTSP client by a malicious or compromised RTSP server. Successful exploitation results in a denial of service (application crash) and has no confirmed impact on confidentiality or integrity.

The advisory is shared at access.redhat.com. This vulnerability is uniquely identified as CVE-2026-85150 since 09/03/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/12/2026).

The vulnerability scanner Nessus provides a plugin with the ID 344854 (Oracle Linux 10 : ELSA-2026-66460-0: / gstreamer1-plugins-base (ELSA-2026-664600)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (344854) and EUVD (EUVD-2026-70380). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Operating System

Vendor

• Red Hat

Name

• Enterprise Linux

Version

• 7
• 8
• 9
• 10

License

• commercial

Website

• Vendor: https://www.redhat.com/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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