CVE-2026-44995: OpenClaw · Untrusted Functionality Inclusion
Affects OpenClawSource GCVE Database
Not known to be exploited · CVSS 5.4 Medium : upgrade to 2026.4.20 when convenient.
Data as of 27 Oct 2026, 00:29 UTC
- Patch
- Available – fixed in 2026.4.20
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade openclaw/openclaw to 2026.4.20.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubopenclaw/openclawpkg:github/openclaw/openclawOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, avoid using untrusted workspace configurations that can influence MCP stdio server environment variables. Operators should be cautious about the environment variables passed to MCP server processes during session startup.
Description
OpenClaw versions before 2026.4.20 have a vulnerability in the MCP stdio server configuration where improper validation of environment variables allows attackers to execute arbitrary code. Malicious workspace configurations can inject dangerous startup variables such as NODE_OPTIONS, LD_PRELOAD, or BASH_ENV into MCP server processes, enabling code injection during session startup.
References
- github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh (opens in a new tab)
- github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af (opens in a new tab)
- github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b (opens in a new tab)
- vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables (opens in a new tab)