EUVD-2026-49750
GHSA-vx44-4wrp-9hjf
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Primary rating from Vendor (redhat) · only source for this CVE.
CVSS VectorVendor: redhat
Lifecycle Timeline
1DescriptionCVE.org
A flaw was found in GStreamer's gst-plugins-good. A heap-based out-of-bounds read of 4 bytes can occur when parsing FLAC audio stream headers embedded in a Matroska or WebM container file. The vulnerability is triggered by a boundary check that does not account for the full size of the data being copied, allowing a small read past the end of the allocated buffer. An attacker could exploit this by crafting a malicious Matroska or WebM file and tricking a user into opening it, potentially leaking a small amount of adjacent heap memory.
AnalysisAI
Information disclosure in gst-plugins-good's FLAC header parser within Matroska/WebM containers allows a local attacker to leak 4 bytes of heap memory by tricking a user into opening a malicious media file. The flaw has a low CVSS score (3
Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today