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4110 articles · 197511 vulns · 37/41 feeds (7d)
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7.5
CVE-2026-18649EXPLOITEDPATCHED
red hat · red hat enterprise linux

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

Description

A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented RTP packet processing. A remote, unauthenticated attacker can send a continuous stream of RTP fragments without ever transmitting an end-of-fragment marker, causing the reassembly buffer to grow without bound until process memory is exhausted. This results in a denial of service through process termination.

Affected Products

VendorProductVersions
red hatred hat enterprise linux—

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
open sourcegstreamercert_advisory90%

References

  • https://0xsemizzz.vercel.app/blog/cve-2026-18649-gstreamer-rtp-dos/
  • https://access.redhat.com/errata/RHSA-2026:53451(vendor-advisory, x_refsource_REDHAT)
  • https://access.redhat.com/errata/RHSA-2026:53452(vendor-advisory, x_refsource_REDHAT)
  • https://access.redhat.com/errata/RHSA-2026:56966(vendor-advisory, x_refsource_REDHAT)
  • https://access.redhat.com/security/cve/CVE-2026-18649(vdb-entry, x_refsource_REDHAT)
  • https://bugzilla.redhat.com/show_bug.cgi?id=2510614(issue-tracking, x_refsource_REDHAT)
  • https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/113

Related News (2 articles)

Tier B
BSI Advisories19d ago
[NEU] [hoch] GStreamer: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB19d ago
CVE-2026-18649 | GStreamer gst-plugins-good/rtph264depay/rtph265depay resource consumption
→ No new info (linked only)
CVSS 3.17.5 NONE
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
0:1.22.12-7.el9_8.2
CWECWE-770
PublishedAug 6, 2026
Last enriched19d ago
Tags
remote code executionfile manipulationdenial of servicemultiple vulnerabilities
Trending Score3
Source articles2
Independent2
Info Completeness0/14
Missing: cve_id, title, description, vendor, product, versions, cvss, epss, cwe, kev, exploit, patch, iocs, mitre_attack

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Aug 6, 2026
Discovered by ZDM
Aug 6, 2026
Actively Exploited
Aug 19, 2026
Exploit Available
Aug 19, 2026
Patch Available
Aug 19, 2026