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HIGH severity

GHSA-pg2v-8xwh-qhcc — openclaw

HIGHFix: openclaw/openclaw@bfa7d21

GHSA-pg2v-8xwh-qhcc is a high-severity (CVSS 8.3) Server-Side Request Forgery (SSRF) vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

OpenClaw affected by SSRF in optional Tlon (Urbit) extension authentication

Also known asCVE-2026-28476
Published
Feb 18, 2026
Updated
May 5, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-pg2v-8xwh-qhcc.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs16th percentile — riskier than 16% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-pg2v-8xwh-qhcc plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 378,156 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

133other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
openclawnpm
2.5Mdownloads / week

Description

Summary

The optional Tlon (Urbit) extension previously accepted a user-provided base URL for authentication and used it to construct an outbound HTTP request, enabling server-side request forgery (SSRF) in affected deployments.

Impact

This only affects deployments that have installed and configured the Tlon (Urbit) extension, and where an attacker can influence the configured Urbit URL. Under those conditions, the gateway could be induced to make HTTP requests to attacker-chosen hosts (including internal addresses).

Deployments that do not use the Tlon extension, or where untrusted users cannot change the Urbit URL, are not impacted.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.2.13

Fixed Versions

  • 2026.2.14 (planned next release)

Fix Commit(s)

  • bfa7d21e997baa8e3437657d59b1e296815cc1b1

Details

Urbit authentication now validates and normalizes the base URL and uses an SSRF guard that blocks private/internal hosts by default (opt-in: channels.tlon.allowPrivateNetwork).

Release Process Note

This advisory is pre-populated with the planned patched version (2026.2.14). After [email protected] is published to npm, publish this advisory without further edits.

Thanks @p80n-sec for reporting.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmopenclawall versions2026.2.14npm install openclaw@2026.2.14

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openclaw, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update openclaw to 2026.2.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-pg2v-8xwh-qhcc is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-pg2v-8xwh-qhcc can be triaged on real exposure rather than presence alone.

Tailored to GHSA-pg2v-8xwh-qhcc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## Summary The optional Tlon (Urbit) extension previously accepted a user-provided base URL for authentication and used it to construct an outbound HTTP request, enabling server-side request forgery (SSRF) in affected deployments. ## Impact This only affects deployments that have installed and configured the Tlon (Urbit) extension, and where an attacker can influence the configured Urbit URL. Under those conditions, the gateway could be induced to make HTTP requests to attacker-chosen hosts (including internal addresses). Deployments that do not use the Tlon extension, or where untrusted use
O3 Security · Impact-Aware SCA

Is GHSA-pg2v-8xwh-qhcc in your dependencies?

O3 Security finds GHSA-pg2v-8xwh-qhcc across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-pg2v-8xwh-qhcc: openclaw (High 8.3) | O3 Security