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CVE-2026-35622

OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook

6.0 MediumFix available

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
High
Availability
None

Exploit likelihood

0.30%Up 0.3 points since Apr 10, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.0

OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

Record
CVE-2026-35622
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-290
Updated
2026-11-02
EUVDEUVD-2026-21104 6.0

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

Record
EUVD-2026-21104
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-hgwr-wr8h-rxm7 6.0

Duplicate Advisory: OpenClaw: Google Chat app-url webhook auth accepted non-deployment add-on principals

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-mp66-rf4f-mhh8. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

Record
GHSA-hgwr-wr8h-rxm7
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/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
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-290
Updated
2026-11-02
GitHub AdvisoriesGHSA-mp66-rf4f-mhh8 6.0

OpenClaw: Google Chat app-url webhook auth accepted non-deployment add-on principals

Summary

Google Chat app-url webhook verification accepted add-on principals outside the intended deployment binding.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected: < 2026.3.22
  • Fixed: >= 2026.3.22
  • Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
  • Latest published npm version checked: 2026.3.23-2

Fix Commit(s)

  • a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66

Release Status

The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2.

Code-Level Confirmation

  • extensions/googlechat/src/auth.ts now requires expectedAddOnPrincipal matching for add-on principals and rejects unexpected issuers.
  • extensions/googlechat/src/monitor-webhook.ts passes the configured appPrincipal into auth verification for the shipped webhook path.

OpenClaw thanks @ijxpwastaken for reporting.

Record
GHSA-mp66-rf4f-mhh8
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-290, CWE-863
Updated
2026-11-02
NVD 6.0

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

Record
CVE-2026-35622
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/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
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-290
Updated
2026-11-02
OSV 6.0

OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

Record
CVE-2026-35622
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-290
Updated
2026-11-02
OSVGHSA-hgwr-wr8h-rxm7 6.0

Duplicate Advisory: OpenClaw: Google Chat app-url webhook auth accepted non-deployment add-on principals

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-mp66-rf4f-mhh8. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

Record
GHSA-hgwr-wr8h-rxm7
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/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
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-290
Updated
2026-11-02
OSVGHSA-mp66-rf4f-mhh8 6.0

OpenClaw: Google Chat app-url webhook auth accepted non-deployment add-on principals

Summary

Google Chat app-url webhook verification accepted add-on principals outside the intended deployment binding.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected: < 2026.3.22
  • Fixed: >= 2026.3.22
  • Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
  • Latest published npm version checked: 2026.3.23-2

Fix Commit(s)

  • a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66

Release Status

The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2.

Code-Level Confirmation

  • extensions/googlechat/src/auth.ts now requires expectedAddOnPrincipal matching for add-on principals and rejects unexpected issuers.
  • extensions/googlechat/src/monitor-webhook.ts passes the configured appPrincipal into auth verification for the shipped webhook path.

OpenClaw thanks @ijxpwastaken for reporting.

Record
GHSA-mp66-rf4f-mhh8
CVSS 4.0
6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-290, CWE-863
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
 before 2026.3.22
2026.3.22

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-2026-35622 is a medium vulnerability (CVSS 6.0) in Openclaw, published March 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 23rd percentile. Fixed in openclaw 2026.3.22.

References

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