CVE-2026-31995 json
OpenClaw 2026.1.21 < 2026.2.19 - Command Injection via Windows Shell Fallback in Lobster Extension
published 2026-03-03 8 mo ago modified 2026-06-23 4 mo ago also GHSA-fg3m-vhrr-8gj6 , EUVD-2026-13029
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
OpenClaw versions 2026.1.21 prior to 2026.2.19 contain a command injection vulnerability in the Lobster extension's Windows shell fallback mechanism that allows attackers to inject arbitrary commands through tool-provided arguments. When spawn failures trigger shell fallback with shell: true, attackers can exploit cmd.exe command interpretation to execute malicious commands by controlling workflow arguments.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.8 | CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L |
| CNA | 4.0 | 5.8 | CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/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 |
| NVD | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | >=2026.1.21, <2026.2.19 |
2026.2.19 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/openclaw/openclaw/commit/ba7be018da354ea9f803ed356d20464df0437916
patch, web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-fg3m-vhrr-8gj6
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-command-injection-via-windows-shell-fallback-in-lobster-extension
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-31995
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-31995
- GitHub Advisory GHSA-fg3m-vhrr-8gj6
- NVD CVE-2026-31995
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