CVE catalog
CVE-2026-53704
A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variabl
- Severity
- High · CVSS 7.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.24% · Oct 25, 2026
A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | gst-plugins-ugly1.0 | sid | 1.28.8-1 | fixed |
| Debian | gst-plugins-ugly1.0 | forky | 1.28.8-1 | fixed |
| Debian | gst-plugins-ugly1.0 | trixie | 1.26.3-4+deb13u1 | vulnerable |
| Debian | gst-plugins-ugly1.0 | trixie-security | 1.26.3-4+deb13u1 | vulnerable |
| Debian | gst-plugins-ugly1.0 | bookworm | 1.22.0-2+deb12u2 | vulnerable |
| Debian | gst-plugins-ugly1.0 | bookworm-security | 1.22.0-2+deb12u2 | vulnerable |
| Cpe | gst-plugins-ugly1.0 | Not reported | Not reported | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | noble | 1.24.1-1ubuntu0.1~esm1 | fixed |
| Ubuntu | gstreamer1.0-plugins-ugly | noble | 1.24.1-1ubuntu0.1~esm1 | fixed |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.26.6-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.26.7-1build1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.27.2-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.27.90-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.28.0-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.28.1-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.28.2-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | pro | 1.28.2-1ubuntu0.1~esm1 | fixed |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.0-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.1-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.2-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.3-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.3-3 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.3-4 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.4-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.5-1 | vulnerable |
| Ubuntu | gst-plugins-ugly1.0 | 25.10 | 1.26.6-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gst-plugins-ugly1.0 | source | sid | 1.28.4-1 | not yet assigned | Not reported | Not reported |
| Debian | gst-plugins-ugly1.0 | source | forky | 1.28.4-1 | not yet assigned | Not reported | Not reported |
| Debian | gst-plugins-ugly1.0 | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | gst-plugins-ugly1.0 | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Ubuntu | gst-plugins-ugly1.0 | deb | noble | 1.24.1-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | gstreamer1.0-plugins-ugly | deb | noble | 1.24.1-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | gst-plugins-ugly1.0 | deb | pro | 1.28.2-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2026-53704 | Not reported |
Notes
[trixie] gst-plugins-ugly1.0: Minor issue [bookworm] gst-plugins-ugly1.0: Minor issue, DoS
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [gstreamer1.0-plugins-ugly]Affected
Source package: [gst-plugins-ugly1.0]
Details (4)
1.22.0-2+deb12u2· amd64 · bookwormAffected
nvd · gst-plugins-ugly1.0 · debian · bookworm; nvd · gst-plugins-ugly1.0 · debian · 12
1.22.0-2+deb12u2· arm64 · bookwormAffected
nvd · gst-plugins-ugly1.0 · debian · bookworm; nvd · gst-plugins-ugly1.0 · debian · 12
1.22.0-2+deb12u2· amd64 · bookworm-securityAffected
nvd · gst-plugins-ugly1.0 · debian · bookworm; nvd · gst-plugins-ugly1.0 · debian · 12
1.22.0-2+deb12u2· arm64 · bookworm-securityAffected
nvd · gst-plugins-ugly1.0 · debian · bookworm; nvd · gst-plugins-ugly1.0 · debian · 12
[Debian 13 (Trixie)]
- [gstreamer1.0-plugins-ugly]Affected
Source package: [gst-plugins-ugly1.0]
Details (4)
1.26.3-4+deb13u1· amd64 · trixieAffected
nvd · gst-plugins-ugly1.0 · debian · 13
1.26.3-4+deb13u1· arm64 · trixieAffected
nvd · gst-plugins-ugly1.0 · debian · 13
1.26.3-4+deb13u1· amd64 · trixie-securityAffected
nvd · gst-plugins-ugly1.0 · debian · 13
1.26.3-4+deb13u1· arm64 · trixie-securityAffected
nvd · gst-plugins-ugly1.0 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_50691.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53704]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-53704]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-53704]
- [https://security-tracker.debian.org/tracker/CVE-2026-53704]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53704.json]
- [https://ubuntu.com/security/notices/USN-8896-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1919.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]