CVE-2026-18649Gstreamer1-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay rtp depayloaders
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 7 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:1.26.7-2.el10_2.3 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:1.24.11-1.el10_0.4 not affected | CNA record |
from 0:1.10.4-4.el7_9.3 not affected | CNA record | |
from 0:1.16.1-4.el8_4.2 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_eus_long_life | from 0:1.16.1-4.el8_4.2 not affected | CNA record |
from 0:1.16.1-5.el8_8.3 not affected | CNA record | |
from 0:1.16.1-5.el8_8.3 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:1.22.12-5.el9_6.2 not affected | CNA record |
References
- https://0xsemizzz.vercel.app/projects/cve-2026-18649-gstreamer-rtp-dos/
- https://access.redhat.com/errata/RHSA-2026:53451vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:53452vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:56966vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61588vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61943vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65959vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65999vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69232vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:70264vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:70584vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:70803vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-18649vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2510614issue-tracking, x-refsource-redhat
- https://github.com/0xSemizzz/CVE-2026-18649
- https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/113
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.