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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.

PUBLISHED Reserved 2026-02-27 | Published 2026-03-05 | Updated 2026-03-05 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

Use of a Broken or Risky Cryptographic Algorithm

Product status

Default status
unaffected

Any version before 2026.2.15
affected

Credits

@kexinoh (of Tencent zhuque Lab, by https://github.com/Tencent/AI-Infra-Guard) reporter

References

github.com/...enclaw/security/advisories/GHSA-fh3f-q9qw-93j9 (GitHub Security Advisory (GHSA-fh3f-q9qw-93j9)) vendor-advisory

github.com/...ommit/559c8d9930eebb5356506ff1a8cd3dbaec92be77 (Patch Commit) patch

www.vulncheck.com/...cated-sha-hash-in-sandbox-configuration (VulnCheck Advisory: OpenClaw < 2026.2.15 - Cache Poisoning via Deprecated SHA-1 Hash in Sandbox Configuration) third-party-advisory

cve.org (CVE-2026-28479)

nvd.nist.gov (CVE-2026-28479)

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