Improper Encoding or Escaping of Output Affecting openclaw package, versions <2026.5.4-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-OPENCLAW-16424654
- published6 May 2026
- disclosed24 Apr 2026
Introduced: 24 Apr 2026
CVE-2026-42040 (opens in a new tab)How to fix?
Upgrade Minimos:latest openclaw to version 2026.5.4-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openclaw package and not the openclaw package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the encode() function in lib/helpers/AxiosURLSearchParams.js contains a character mapping (charMap) at line 21 that reverses the safe percent-encoding of null bytes. After encodeURIComponent('\x00') correctly produces the safe sequence %00, the charMap entry '%00': '\x00' converts it back to a raw null byte. Primary impact is limited because the standard axios request flow is not affected. This vulnerability is fixed in 1.15.1 and 0.31.1.