Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gst-plugins-base1.0 | 1.28.7-1 | — |
| Debian 13 | gst-plugins-base1.0 | No fix yet | — |
| Debian 12 | gst-plugins-base1.0 | 1.22.0-3+deb12u7 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | gst-plugins-base1.0 | No fix yet | — |
| Ubuntu 24.04 LTS | gst-plugins-base1.0 | No fix yet | — |
| Ubuntu 22.04 LTS | gst-plugins-base1.0 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | gst-plugins-base1.0 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | gst-plugins-base1.0 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | gstreamer1-plugins-base +2 | 1.26.7-2.el10_2.2 | RHSA-2026:66460 |
| RHEL 9 | gstreamer1-plugins-base +2 | 1.22.12-8.el9_8.2 | RHSA-2026:69100 |
| RHEL 8 | gstreamer1-plugins-base +1 | 1.16.1-7.el8_10 | RHSA-2026:67145 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | gstreamer1-plugins-base +2 | 1.26.7-2.el10_2.2 | ALSA-2026:66460 |
| AlmaLinux 9 | gstreamer1-plugins-base | 1.22.12-8.el9_8.2 | ALSA-2026:69100 |
| AlmaLinux 8 | gstreamer1-plugins-base +1 | 1.16.1-7.el8_10 | ALSA-2026:67145 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | gstreamer1-plugins-base | 1.26.7-2.el10_2.2 | RLSA-2026:66460 |
| Rocky Linux 9 | gstreamer1-plugins-base | 1.22.12-8.el9_8.2 | RLSA-2026:69100 |
| Rocky Linux 8 | gstreamer1-plugins-base | 1.16.1-7.el8_10 | RLSA-2026:67145 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | gstreamer1-plugins-base +2 | 1.24.10-1.amzn2023.0.5 | ALAS2023-2026-3106 |
| Amazon Linux 2 | gstreamer1-plugins-base +2 | 1.18.4-5.amzn2.0.12 | ALAS2-2026-3930 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | gstreamer1-plugins-base | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | gstreamer1-plugins-base +2 | 1.22.12-8.el9_8.2 | ELSA-2026-69100 |
Advisories 13
- ALSA-2026:69100 Important: gstreamer1-plugins-base security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:66460 Moderate: gstreamer1-plugins-base security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:67145 Moderate: gstreamer1-plugins-base security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-3222 GStreamer: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 28, 2026
- ALAS2023-2026-3106 Important: gstreamer1-plugins-base security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 28, 2026
- ALAS2-2026-3930 Important: gstreamer1-plugins-base security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 28, 2026
- RHSA-2026:69100 Red Hat Security Advisory: gstreamer1-plugins-base security update Red Hat Security Advisories (RHSA) · Sep 23, 2026
- RLSA-2026:69100 Important: gstreamer1-plugins-base security update Rocky Linux Security Advisories · Sep 22, 2026
- RHSA-2026:67145 Red Hat Security Advisory: gstreamer1-plugins-base security update Red Hat Security Advisories (RHSA) · Sep 22, 2026
- RHSA-2026:66460 Red Hat Security Advisory: gstreamer1-plugins-base security update Red Hat Security Advisories (RHSA) · Sep 22, 2026
- ELSA-2026-69100 Important: gstreamer1-plugins-base security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 21, 2026
- RLSA-2026:67145 Moderate: gstreamer1-plugins-base security update Rocky Linux Security Advisories · Sep 15, 2026
- RLSA-2026:66460 Moderate: gstreamer1-plugins-base security update Rocky Linux Security Advisories · Sep 11, 2026
References
- RHSA-2026:66460 vendor-advisory
- RHSA-2026:67145 vendor-advisory
- RHSA-2026:69100 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-85150 vdb-entry
- RHBZ#2527936 issue-tracking
- https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/120
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/blob/main/subprojects/gst-plugins-base/gst-libs/gst/rtsp/gstrtspmessage.c#L1408