Description
A use-after-free flaw was found in GStreamer core buffer value deserialization. When serialized buffer text contains an invalid character, an error path frees a mapped buffer before unmapping it. Applications that parse untrusted caps or structure data can reach a freed-buffer read and may crash. A network-facing GStreamer Data Protocol receiver can process such caps data without user interaction; further impact has not been established.
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 | gstreamer1.0 | 1.28.3-1 | — |
| Debian 13 | gstreamer1.0 | No fix yet | — |
| Debian 12 | gstreamer1.0 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | gstreamer1.0 | No fix yet | — |
| Ubuntu 24.04 LTS | gstreamer1.0 | No fix yet | — |
| Ubuntu 22.04 LTS | gstreamer1.0 | No fix yet | — |
| Ubuntu 20.04 LTS | gstreamer1.0 | No fix yet | — |
| Ubuntu 18.04 LTS | gstreamer1.0 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | gstreamer1.0 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | gstreamer1 +1 | 1.26.7-5.el10_3.1 | RHSA-2026:99129 |
| RHEL 9 | gstreamer1 +1 | 1.22.12-3.el9_9.1 | RHSA-2026:99228 |
| RHEL 8 | gstreamer1 +1 | 1.16.1-3.el8_10 | RHSA-2026:99090 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | gstreamer1 +1 | 1.16.1-3.el8_10 | ALSA-2026:99090 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | gstreamer1 +1 | 1.26.7-5.el10_3.1 | RLSA-2026:99129 |
| Rocky Linux 9 | gstreamer1 +1 | 1.22.12-3.el9_9.1 | RLSA-2026:99228 |
| Rocky Linux 8 | gstreamer1 +1 | 1.16.1-3.el8_10 | RLSA-2026:99090 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | gstreamer1 +1 | 1.16.1-3.el8_10 | ELSA-2026-99090 |
Advisories 9
- RHSA-2026:99090 Red Hat Security Advisory: gstreamer1 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:99129 Red Hat Security Advisory: gstreamer1 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:99228 Red Hat Security Advisory: gstreamer1 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RLSA-2026:99228 Important: gstreamer1 security update Rocky Linux Security Advisories · Nov 13, 2026
- RLSA-2026:99129 Important: gstreamer1 security update Rocky Linux Security Advisories · Nov 13, 2026
- ALSA-2026:99090 Important: gstreamer1 security update AlmaLinux Security Advisories · Nov 13, 2026
- RLSA-2026:99090 Important: gstreamer1 security update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-4542 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- ELSA-2026-99090 Important: gstreamer1 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 12, 2026
References
- RHSA-2026:99090 vendor-advisory
- RHSA-2026:99129 vendor-advisory
- RHSA-2026:99228 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-125704 vdb-entry
- RHBZ#2569128 issue-tracking
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11583.patch
- https://gstreamer.freedesktop.org/security/sa-2026-0028.html