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bdu:2026-05247

BREW-openclaw-cli-CVE-2026-27524 — OpenClaw's runtime /debug override path accepted prototype-reserved keys

Affected: Homebrew: openclaw-cli

### Summary OpenClaw accepted prototype-reserved keys in runtime `/debug set` override object values (`__proto__`, `constructor`, `prototype`).

### Impact `/debug` is disabled by default, and exploitation requires an already authorized `/debug set` caller. No unauthenticated vector was identified.

This issue affects runtime in-memory overrides only (non-persistent and cleared on restart/reset). Given the required prior authorization boundary, this is treated as defense-in-depth hardening for command flag evaluation.

### Affected Packages / Versions - Package: `openclaw` (npm) - Latest published vulnerable version confirmed: `2026.2.19-2` - Vulnerable range: `<= 2026.2.19-2` - Patched in planned next release: `2026.2.21`

### Technical Details - Runtime override merges now block reserved prototype keys during deep merge. - Runtime override writes now sanitize nested object values to remove reserved prototype keys before storing overrides. - Restricted command gates (`bash`, `config`, `debug`) now require own-property boolean flags, preventing inherited prototype values from enabling commands.

### Fix Commit(s) - `fbb79d4013000552d6a2c23b9613d8b3cb92f6b6`

### Release Process Note `patched_versions` is pre-set to `2026.2.21` so after the npm release is live, this advisory can be published immediately.

OpenClaw thanks @tdjackey for reporting.

cnvd-2026-16045

EUVD-2026-329377

fkie_cve-2026-27524

OpenClaw versions prior to 2026.2.21 accept prototype-reserved keys in runtime /debug set override object values, allowing prototype pollution attacks. Authorized /debug set callers can inject __proto__, constructor, or prototype keys to manipulate object prototypes and bypass command gate restrictions.

GHSA-62f6-mrcj-v8h5 — OpenClaw's runtime /debug override path accepted prototype-reserved keys

Affected: npm: openclaw

### Summary OpenClaw accepted prototype-reserved keys in runtime `/debug set` override object values (`__proto__`, `constructor`, `prototype`).

### Impact `/debug` is disabled by default, and exploitation requires an already authorized `/debug set` caller. No unauthenticated vector was identified.

### Fix Commit(s) - `fbb79d4013000552d6a2c23b9613d8b3cb92f6b6`

### Release Process Note `patched_versions` is pre-set to `2026.2.21` so after the npm release is live, this advisory can be published immediately.

OpenClaw thanks @tdjackey for reporting.

WID-SEC-W-2026-0472 — OpenClaw: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in OpenClaw ausnutzen, um beliebigen Programmcode auszuführen, sich erhöhte Berechtigungen zu verschaffen, Daten zu manipulieren, einen Denial-of-Service-Zustand auszulösen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen oder andere nicht näher spezifizierte Angriffe durchzuführen.