What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-05 · updated 2026-06-17
• Weakness: CWE-327

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.

Affected products

• OpenClaw: before 2026.2.15 — fixed in 2026.2.15

How to fix

Upgrade to a fixed version: OpenClaw 2026.2.15. Check the vendor advisory for mitigations.

References

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

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