CVE-2026-125040
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Nov 09, 2026
Vendor
unknown
Description
A flaw was found in the SRT and WebVTT subtitle parser in GStreamer's gst-plugins-base. While sanitizing inline subtitle markup, the parser repeatedly searches the remaining text with unanchored regular expressions. A crafted subtitle cue with a long line of unmatched markup-like text can force quadratic CPU use and make a GStreamer-based application unresponsive.