# Libass vulnerabilities

Source: https://junglewise.ai/threats/technologies/libass-libass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/libass-libass.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Libass: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-61627, was published on 30 October 2026. 3 vulnerabilities in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 2
- Last 90 days: 3
- All time: 3 (0 critical, 0 exploited in the wild)

## About Libass

Open source library for rendering ASS/SSA subtitles in video applications.

## Latest Libass vulnerabilities

- [CVE-2026-61627: libass out-of-bounds read and write in wrap_lines_measure](https://junglewise.ai/threats/cve-2026-61627-libass-is-a-portable-subtitle-renderer-for-the-ass-ssa-advanced) (info, published 30 Oct 2026)
- [CVE-2026-61626: libass memory corruption via negative Matroska ReadOrder](https://junglewise.ai/threats/cve-2026-61626-libass-is-a-portable-subtitle-renderer-for-the-ass-ssa-advanced) (info, published 30 Oct 2026)
- [CVE-2026-95127: libass signed integer overflow in ass_outline_construct](https://junglewise.ai/threats/cve-2026-95127-an-issue-in-libass-v-0-17-5-allows-a-remote-attacker-to-cause-a) (info, published 13 Oct 2026)

## Most severe Libass vulnerabilities

- [CVE-2026-95127: libass signed integer overflow in ass_outline_construct](https://junglewise.ai/threats/cve-2026-95127-an-issue-in-libass-v-0-17-5-allows-a-remote-attacker-to-cause-a) (info, published 13 Oct 2026)
- [CVE-2026-61627: libass out-of-bounds read and write in wrap_lines_measure](https://junglewise.ai/threats/cve-2026-61627-libass-is-a-portable-subtitle-renderer-for-the-ass-ssa-advanced) (info, published 30 Oct 2026)
- [CVE-2026-61626: libass memory corruption via negative Matroska ReadOrder](https://junglewise.ai/threats/cve-2026-61626-libass-is-a-portable-subtitle-renderer-for-the-ass-ssa-advanced) (info, published 30 Oct 2026)

## Vulnerabilities per week

3 vulnerabilities in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 1 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 2 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Libass vulnerabilities", https://junglewise.ai/threats/technologies/libass-libass, 13 November 2026.