Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-mp66-rf4f-mhh8
Advisory ID github_osv/GHSA-mp66-rf4f-mhh8
Aliases CVE-2026-35622
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 5.4
Risk 2.7
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-290 Authentication Bypass by Spoofing
CWE-863 Incorrect Authorization
System Score Found at
cvssv3.1 5.9 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-mp66-rf4f-mhh8/GHSA-mp66-rf4f-mhh8.json
cvssv4 6.0 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-mp66-rf4f-mhh8/GHSA-mp66-rf4f-mhh8.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/openclaw/openclaw
https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66
https://github.com/openclaw/openclaw/security/advisories/GHSA-mp66-rf4f-mhh8
https://www.vulncheck.com/advisories/openclaw-improper-authentication-verification-in-google-chat-webhook
630f1479c44f78484dfa21bb407cbe6f171dac87 Other https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
CVE-2026-35622 https://nvd.nist.gov/vuln/detail/CVE-2026-35622
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-mp66-rf4f-mhh8/GHSA-mp66-rf4f-mhh8.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-mp66-rf4f-mhh8/GHSA-mp66-rf4f-mhh8.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

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-13T18:16:25Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/35xxx/CVE-2026-35622.json

Source Advisory: vulnrichment/CVE-2026-35622

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