| Component | OpenClaw |
| Severity | medium (CVSS 4.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| Published (NVD) | 2026-03-18 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.2.21 |
| Fixed in | 2026.2.21 |
| Weakness | CWE-1321 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade OpenClaw to
2026.2.21or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-27524
- https://github.com/openclaw/openclaw/security/advisories/GHSA-62f6-mrcj-v8h5
- https://github.com/openclaw/openclaw/commit/fbb79d4013000552d6a2c23b9613d8b3cb92f6b6
- https://www.vulncheck.com/advisories/openclaw-prototype-pollution-via-debug-override-path
Read more
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