CVE-2026-125040
Last modified
CVE-2026-125040 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | All versions |
| Red Hat | Red Hat Enterprise Linux 7 | All versions |
| Red Hat | Red Hat Enterprise Linux 8 | All versions |
| Red Hat | Red Hat Enterprise Linux 9 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-125040?
How severe is CVE-2026-125040?
How do I fix CVE-2026-125040?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-1250The Court Reservation – Manage Your Court Bookings Online pl…7.5
- CVE-2026-12500The WP Travel Engine WordPress plugin before 6.8.2 does not…7.5
- CVE-2026-12501The WP Travel Engine WordPress plugin before 6.8.2 does not …5.3
- CVE-2026-12502Improper Privilege Management (CWE-269) in `/usr/bin/ltsudo`…8.4
- CVE-2026-12503Improper Link Resolution (CWE-59) in `/usr/bin/larm_starter`…9.2
- CVE-2026-12504Improper Authentication (CWE-287) in the PAM configuration i…8.4
- CVE-2026-125041A flaw was found in GStreamer's gst-plugins-good MOV/MP4 dem…5.5
- CVE-2026-12505A flaw was found in the cifs-utils package where the cifs.up…7.8
- CVE-2026-125063A flaw was found in the rrule validation of schedules in aut…4.3
- CVE-2026-125064FFmpeg through 9.0.2 contains a NULL pointer dereference vul…5.5
- CVE-2026-125065FFmpeg through 9.0.2 contains a NULL pointer dereference vul…5.5
- CVE-2026-125066FFmpeg through 9.0.2 contains a NULL pointer dereference vul…5.5
Are you affected by CVE-2026-125040?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST