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CVE-2026-35629

OpenClaw < 2026.3.25 - Server-Side Request Forgery via Unguarded Configured Base URLs in Channel Extensions

5.3 MediumFix available

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
None

Exploit likelihood

0.25%Up 0.2 points since Apr 10, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.3

OpenClaw < 2026.3.25 - Server-Side Request Forgery via Unguarded Configured Base URLs in Channel Extensions

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

Record
CVE-2026-35629
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-918
Updated
2026-11-02
EUVDEUVD-2026-21116 5.3

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

Record
EUVD-2026-21116
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-8j7f-g9gv-7jhc 5.3

Duplicate Advisory: OpenClaw: SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-rhfg-j8jq-7v2h. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

Record
GHSA-8j7f-g9gv-7jhc
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-918
Updated
2026-11-02
GitHub AdvisoriesGHSA-rhfg-j8jq-7v2h No score

OpenClaw: SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)

Summary

SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)

Affected Packages / Versions

  • Package: openclaw
  • Affected versions: <= 2026.3.24
  • First patched version: 2026.3.25
  • Latest published npm version at verification time: 2026.3.24

Details

Several channel extensions still used raw fetch() against configured base URLs without the SSRF guard that was added for CVE-2026-28476. Commit f92c92515bd439a71bd03eb1bc969c1964f17acf routes those outbound requests through fetchWithSsrFGuard so configured endpoints cannot be rebound to blocked internal destinations.

Verified vulnerable on tag v2026.3.24 and fixed on main by commit f92c92515bd439a71bd03eb1bc969c1964f17acf.

Fix Commit(s)

  • f92c92515bd439a71bd03eb1bc969c1964f17acf
Record
GHSA-rhfg-j8jq-7v2h
Weakness
CWE-918
Updated
2026-11-02
NVD 5.3

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

Record
CVE-2026-35629
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-918
Updated
2026-11-02
OSV 5.3

OpenClaw < 2026.3.25 - Server-Side Request Forgery via Unguarded Configured Base URLs in Channel Extensions

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

Record
CVE-2026-35629
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Weakness
CWE-918
Updated
2026-11-02
OSVGHSA-8j7f-g9gv-7jhc 5.3

Duplicate Advisory: OpenClaw: SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-rhfg-j8jq-7v2h. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

Record
GHSA-8j7f-g9gv-7jhc
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-918
Updated
2026-11-02
OSVGHSA-rhfg-j8jq-7v2h No score

OpenClaw: SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)

Summary

SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)

Affected Packages / Versions

  • Package: openclaw
  • Affected versions: <= 2026.3.24
  • First patched version: 2026.3.25
  • Latest published npm version at verification time: 2026.3.24

Details

Several channel extensions still used raw fetch() against configured base URLs without the SSRF guard that was added for CVE-2026-28476. Commit f92c92515bd439a71bd03eb1bc969c1964f17acf routes those outbound requests through fetchWithSsrFGuard so configured endpoints cannot be rebound to blocked internal destinations.

Verified vulnerable on tag v2026.3.24 and fixed on main by commit f92c92515bd439a71bd03eb1bc969c1964f17acf.

Fix Commit(s)

  • f92c92515bd439a71bd03eb1bc969c1964f17acf
Record
GHSA-rhfg-j8jq-7v2h
Weakness
CWE-918
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
 before 2026.3.28
2026.3.28

History

History
RecordedChangedSources
affected
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-35629 is a medium vulnerability (CVSS 5.3) in Openclaw, published March 29, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 17th percentile. Fixed in openclaw 2026.3.28.

References

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