Dashboard / CVE-2026-125040

CVE-2026-125040

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-11-09 Modified: 2026-11-10 First seen: 2026-11-09 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
GStreamer gst-plugins-base 0.0.0 < 1.28.2

References & Advisories (3)

https://bugzilla.redhat.com/show_bug.cgi?id=2569124
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.38%
Raw Score 0.003790
Percentile 32.4%
Date 2026-11-12

EPSS Trend

2026-11-12
0.00379
2026-11-10
0.00379

Intelligence Sources

mitre ref →
nvd ref →

External Links