VulnSocial

CVE-2026-12891Disclosure(gstreamer / enterprise_linux)

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 parser performs an out-of-bounds read of up to 8 bytes from adjacent memory. This flaw allows an attacker to craft a malicious H.266 video file or stream that, when processed by a GStreamer-based application, could leak limited memory contents through video metadata, potentially exposing sensitive information from the application's address space.

gstreamer CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • enterprise_linux
  • gstreamer

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
gstreamerredhat
Products
enterprise_linuxgstreamer

4 versions affected across 2 products

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-06-23: 2Technical Details · 2026-06-23: 206-23
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-12891 A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 p… https://www.cve.org/CVERecord?id=CVE-2026-12891 ----- Traducción: Se encontró una fa… http://infoflow.cloud`

    Post summary

    The tweet announces a vulnerability in GStreamer's gst‑plugins‑bad affecting malformed H.266/VVC video streams, providing technical detail but no PoC, exploit code, patch, or evidence of active exploitation.

    0000038
    88 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-12891 A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 p… https://www.cve.org/CVERecord?id=CVE-2026-12891

    Post summary

    The statement reports the discovery of a flaw in GStreamer’s gst-plugins-bad related to malformed H.266/VVC streams, but does not provide a PoC, exploit code, active exploitation evidence, or patch information.

    00000701
    57.7K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appgstreamergstreamer---
OSredhatenterprise_linux10.0--
OSredhatenterprise_linux8.0--
OSredhatenterprise_linux9.0--

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