CVE-2026-28476 json
OpenClaw < 2026.2.14 - Server-Side Request Forgery in Tlon Extension Authentication
published 8mo ago modified 4mo ago also GHSA-pg2v-8xwh-qhcc , EUVD-2026-9922
- cvss
- 8.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
OpenClaw versions prior to 2026.2.14 contain a server-side request forgery vulnerability in the optional Tlon Urbit extension that accepts user-provided base URLs for authentication without proper validation. Attackers who can influence the configured Urbit URL can induce the gateway to make HTTP requests to arbitrary hosts including internal addresses.
Patch / fix
- npm openclaw 2026.2.14
- OpenClaw OpenClaw 2026.2.14
Is CVE-2026-28476 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
- yes
- Technical impact
- partial
- Assessed
- 8mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L |
| CNA | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L |
| CNA | 4.0 | 6.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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 | 5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N |
| GitHub | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.2.14 |
2026.2.14 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/openclaw/openclaw/commit/bfa7d21e997baa8e3437657d59b1e296815cc1b1
patch, web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-pg2v-8xwh-qhcc
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-server-side-request-forgery-in-tlon-extension-authentication
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-28476
advisory
-
github.com
/openclaw/openclaw
package
-
github.com
/openclaw/openclaw/releases/tag/v2026.2.14
web
Sources
- CVE List CVE-2026-28476
- GitHub Advisory GHSA-pg2v-8xwh-qhcc
- NVD CVE-2026-28476
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