CVE-2026-53864 json
OpenClaw < 2026.5.26 - Insufficient Environment Variable Sanitization in Node.js Control Variables
published 5mo ago modified 4mo ago also EUVD-2026-37166 , GHSA-ccwh-wwpp-6wg5
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
OpenClaw before 2026.5.26 contains an insufficient sanitization vulnerability in the host environment sanitizer that allows Node.js control variables to bypass validation. Attackers with access to workspace .env files, tool environment overrides, or skill environment blocks can pass malicious Node.js control variables to influence child processes or coverage output paths.
Patch / fix
- npm openclaw 2026.5.26
- OpenClaw OpenClaw 2026.5.26
Is CVE-2026-53864 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.6 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| GitHub | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 7.6 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.5.26 |
2026.5.26 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-184 Incomplete List of Disallowed Inputs
References
-
github.com
/openclaw/openclaw/security/advisories/GHSA-ccwh-wwpp-6wg5
vendor-advisory, web, mitigation, advisory
-
vulncheck.com
/advisories/openclaw-insufficient-environment-variable-sanitization-in-node-js-control-variables
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-53864
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-53864
- GitHub Advisory GHSA-ccwh-wwpp-6wg5
- NVD CVE-2026-53864
- Maintainer advisory GHSA-ccwh-wwpp-6wg5
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of openclaw/openclaw published their own advisory on GitHub. Reviewed sources take precedence over it.