Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-8mvx-p2r9-r375
Advisory ID github_osv/GHSA-8mvx-p2r9-r375
Aliases CVE-2026-22181
Summary OpenClaw's web tools strict URL guard could lose DNS pinning when env proxy is configured ### Summary `openclaw` web tools strict URL fetch paths could lose DNS pinning when environment proxy variables are configured (`HTTP_PROXY`/`HTTPS_PROXY`/`ALL_PROXY`, including lowercase variants). In affected builds, strict URL checks (for example `web_fetch` and citation redirect resolution) validated one destination during SSRF guard checks, but runtime connection routing could proceed through an env-proxy dispatcher. ### Affected Packages / Versions - Package: `openclaw` (npm) - Vulnerable version range: `<= 2026.3.1` - Latest published npm version at triage time (2026-03-02): `2026.3.1` - Patched versions: `>= 2026.3.2` (released) ### Technical Details The SSRF guard performed hostname resolution and policy checks, then selected a request dispatcher. When env proxy settings were present, strict web-tool flows could use `EnvHttpProxyAgent` instead of the DNS-pinned dispatcher. This created a destination-binding gap between check-time resolution and connect-time routing. The fix keeps DNS pinning on strict/untrusted web-tool URL paths and limits env-proxy bypass behavior to trusted/operator-controlled endpoints via an explicit dangerous opt-in. ### Impact In deployments with env proxy variables configured, attacker-influenced URLs from web tools could be routed through proxy behavior instead of strict pinned-destination routing, which could allow access to internal/private targets reachable from that proxy environment. ### Mitigations Before upgrading, operators can reduce exposure by clearing proxy env vars for OpenClaw runtime processes or disabling `web_fetch` / `web_search` where untrusted URL input is possible. ### Fix Commit(s) - `345abf0b2e0f43b0f229e96f252ebf56f1e5549e`
Status Published
Exploitability 0.5
Weighted Severity 5.5
Risk 2.8
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-918 Server-Side Request Forgery (SSRF)
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
System Score Found at
cvssv4 6.1 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-8mvx-p2r9-r375/GHSA-8mvx-p2r9-r375.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/openclaw/openclaw
345abf0b2e0f43b0f229e96f252ebf56f1e5549e Other https://github.com/openclaw/openclaw/commit/345abf0b2e0f43b0f229e96f252ebf56f1e5549e
CVE-2026-22181 https://nvd.nist.gov/vuln/detail/CVE-2026-22181
GHSA-8mvx-p2r9-r375 Advisory https://github.com/openclaw/openclaw/security/advisories/GHSA-8mvx-p2r9-r375
openclaw-dns-pinning-bypass-via-environment-proxy-configuration-in-web-fetch Advisory https://www.vulncheck.com/advisories/openclaw-dns-pinning-bypass-via-environment-proxy-configuration-in-web-fetch
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-8mvx-p2r9-r375/GHSA-8mvx-p2r9-r375.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

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none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

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high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-18T16:03:39Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/22xxx/CVE-2026-22181.json

Source Advisory: vulnrichment/CVE-2026-22181

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]