OpenClaw replaced a deprecated sandbox hash algorithm

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

8.7 · 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 · score source

EPSS

• CVE-2026-28479: 0.21% estimated exploitation activity in the next 30 days; percentile 10.96 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Affected Packages / Versions - npm package: openclaw - Affected versions: <= 2026.2.14 - Fixed version (pre-set): 2026.2.15 Description The sandbox identifier cache key for Docker/browser sandbox configuration used SHA-1 to hash normalized configuration payloads. SHA-1 is deprecated for cryptographic use and has known collision weaknesses. In this code path, deterministic IDs are used to decide whether an existing sandbox container can be reused safely. A collision in this hash could let one configuration be interpreted as another under the same sandbox cache identity, increasing the risk of cache poisoning and unsafe sandbox state reuse. The implementation now uses SHA-256 for these deterministic hashes to restore collision resistance for this security-relevant identifier path. Fix Commit(s) - 559c8d993 Release Process Note patchedversions is pre-set to 2026.2.15 for the next release. After that release is published, mark this advisory ready for publication. Thanks @kexinoh ( of…

Published by the source

19 Feb 2026, 19:41 UTC

Last modified by the source

6 Mar 2026, 01:17 UTC

Source last checked

26 Oct 2026, 12:43 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-fh3f-q9qw-93j9

2. Revision 2 · amended · 24 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-fh3f-q9qw-93j9

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# Patch Next advisory brief: CVE-2026-28479

Advisory: OpenClaw replaced a deprecated sandbox hash algorithm
IDs: CVE-2026-28479, GHSA-fh3f-q9qw-93j9
Record: https://patchnext.com/advisories/cve-2026-28479 (revision 3, source checked 26 Oct 2026, 12:43 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: openclaw 2026.2.15. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm openclaw: affected <= 2026.2.14; fixed in 2026.2.15

## Suggested inspection (read-only)
- `npm ls openclaw --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on openclaw.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-fh3f-q9qw-93j9 (OSV record GHSA-fh3f-q9qw-93j9 lists affected ranges: npm openclaw >=0 <2026.2.15 (fixed))
- Verified: https://github.com/advisories/GHSA-fh3f-q9qw-93j9 (GitHub-reviewed advisory GHSA-fh3f-q9qw-93j9 lists affected ranges: npm openclaw >=0 <=2026.2.14)

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