CVE record · CVE-2026-18649

Gstreamer1-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay rtp depayloaders

CVSS 7.5 HighEPSS 0.0096 · 61st percentile

Published by the CVE Program (CNA: redhat) at 6 Aug 2026, 06:48 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10 Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.26.7-2.el10_2.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.24.11-1.el10_0.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.10.4-4.el7_9.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.16.1-7.el8_10.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.16.1-4.el8_4.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.16.1-4.el8_4.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.16.1-4.el8_6.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.16.1-4.el8_6.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.16.1-5.el8_8.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.16.1-5.el8_8.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.22.12-7.el9_8.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.18.4-8.el9_2.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.22.1-4.el9_4.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support Package name: gstreamer1-plugins-good https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.22.12-5.el9_6.2 to before * rpm Other versions: affected

Identifiers: CVE-2026-18649
CNA: redhat
Weakness (CWE): CWE-770
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Denial of service
Published: 6 Aug 2026
Updated: 23 Sept 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0096, the 61st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 6 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

0xsemizzz.vercel.app/projects/cve-2026-18649-gstreamer-rtp-dos/
access.redhat.com/errata/RHSA-2026:53451 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:53452 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:56966 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:61588 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:61943 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:65959 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:65999 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:69232 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:70264 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:70584 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:70803 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-18649 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2510614 issue-trackingredhat
github.com/0xSemizzz/CVE-2026-18649
gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/113

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.