[UPDATE] [medium] GStreamer: Multiple vulnerabilities

mediumCVE-2026-12891 CVE-2026-12892

An attacker can exploit multiple vulnerabilities in GStreamer to disclose information and perform a Denial of Service attack.

CSIRTS triage

vendor: GStreamer product: GStreamer Information disclosure Denial of service

What: Multiple vulnerabilities in GStreamer can be exploited to disclose information and perform Denial of Service attacks.
Who is affected: Deployments of GStreamer are affected by these vulnerabilities.
Urgency: Remediation is necessary due to the potential for information disclosure and service disruption.
Action: Update GStreamer to the latest version to address these vulnerabilities.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-07-28
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2053

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-128910.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.
Low exploitation riskCVE-2026-128920.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-12891	coverage & exploitation status	NVD · CVE.org
CVE-2026-12892	coverage & exploitation status	NVD · CVE.org

Recent advisories for GStreamer

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[NEW] [medium] GStreamer: Multiple vulnerabilitiescert-bund · 2026-07-31
medium[UPDATE] [medium] GStreamer: Multiple vulnerabilitiescert-bund · 2026-07-30
medium[UPDATE] [medium] GStreamer: Multiple vulnerabilitiescert-bund · 2026-07-30
highCVE-2026-5056: GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnera…nvd · 2026-07-29
low[NEW] [low] GStreamer: Vulnerability allows disclosure of informationcert-bund · 2026-07-29
lowCVE-2026-17072: A flaw was found in GStreamer's gst-plugins-good. A heap-based out-of-bounds read of 4 bytes c…nvd · 2026-07-28