Vulnerability-Lookup

rlsa-2026:53451

Vulnerability from osv_rocky

Published

2026-08-12 12:08

Modified

2026-08-12 12:11

Summary

Moderate: gstreamer1-plugins-good security update

Details

GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under the LGPL license.

Security Fix(es):

gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP depayloaders (CVE-2026-18649)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Credits

Rocky Enterprise Software Foundation

Red Hat

References

URL

Type

	https://errata.rockylinux.org/RLSA-2026:53451	ADVISORY
	https://bugzilla.redhat.com/show_bug.cgi?id=2510614	REPORT
	https://access.redhat.com/errata/RHSA-2026:53451	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "gstreamer1-plugins-good",
        "purl": "pkg:rpm/rocky-linux/gstreamer1-plugins-good?distro=rocky-linux-10\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "AppStream"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:1.26.7-2.el10_2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:53451"
  },
  "details": "GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under the LGPL license.\n\nSecurity Fix(es):\n\n* gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP depayloaders (CVE-2026-18649)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "RLSA-2026:53451",
  "modified": "2026-08-12T12:11:06.498605Z",
  "published": "2026-08-12T12:08:21.567220Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:53451"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510614"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:53451"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Moderate: gstreamer1-plugins-good security update",
  "upstream": [
    "CVE-2026-18649"
  ]
}

CVE-2026-18649 (GCVE-0-2026-18649)

Vulnerability from cvelistv5 – Published: 2026-08-06 06:48 – Updated: 2026-08-11 20:43

Title

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

Summary

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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-06 13:42 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

redhat

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:53451	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:53452	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-18649	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2510614	issue-trackingx_refsource_REDHAT
https://gitlab.freedesktop.org/gstreamer/gstreame…

Impacted products

4 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:1.26.7-2.el10_2.3 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:1.22.12-7.el9_8.2 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8

Date Public

2026-08-06 06:41

Credits

Red Hat would like to thank Yehia Ali Mohamed Ezzat for reporting this issue.

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

rlsa-2026:53451

Vulnerability from osv_rocky

CVE-2026-18649 (GCVE-0-2026-18649)

Tags

Sightings

Nomenclature