CVE-2026-18649

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

HIGH 7.5

At a glance

Source: NVD
EPSS: EPSS 0.96 % · percentile 61 (2026-10-28)
State: PUBLISHED
Published: 2026-08-06 06:48 UTC
Updated: 2026-09-23 15:06 UTC
Assigner: redhat
NVD status: Awaiting Analysis

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.

Weaknesses (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	redhat
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · secalert@redhat.com (Secondary)

European references

ENISA EUVD · EUVD-2026-53768
GCVE · GCVE-0-2026-18649

Affected products

Product	Versions
Red Hat · Red Hat Enterprise Linux 10	unaffected 0:1.26.7-2.el10_2.3 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Support	unaffected 0:1.24.11-1.el10_0.4 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:1.10.4-4.el7_9.3 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:1.16.1-7.el8_10.3 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:1.16.1-4.el8_4.2 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	unaffected 0:1.16.1-4.el8_4.2 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:1.16.1-4.el8_6.3 < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	unaffected 0:1.16.1-4.el8_6.3 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Service	unaffected 0:1.16.1-5.el8_8.3 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	unaffected 0:1.16.1-5.el8_8.3 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:1.22.12-7.el9_8.2 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	unaffected 0:1.18.4-8.el9_2.2 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	unaffected 0:1.22.1-4.el9_4.2 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Support	unaffected 0:1.22.12-5.el9_6.2 < *

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD