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Vulnerability details: VCID-hphn-8fnj-qkh2
Vulnerability ID VCID-hphn-8fnj-qkh2
Aliases CVE-2026-43572
GHSA-gc9r-867r-j85f
Summary OpenClaw: Microsoft Teams SSO invoke handler missed sender authorization checks ## Summary Microsoft Teams SSO invoke handler missed sender authorization checks. ## Affected Packages / Versions - Package: `openclaw` - Ecosystem: npm - Affected versions: `>= 2026.4.10 < 2026.4.14` - Patched versions: `>= 2026.4.14` ## Impact Microsoft Teams SSO signin invoke handling could process an invoke from a sender before applying the same sender allowlist checks used by normal message handling. ## Technical Details The fix routes SSO invoke handling through the Teams sender authorization path and adds coverage for denied senders. ## Fix The issue was fixed in #66033. The first stable tag containing the fix is `v2026.4.14`, and `openclaw@2026.4.14` includes the fix. ## Fix Commit(s) - `80b1fa17bfc3f6a668492f0326ea52f48bb89776` - PR: #66033 ## Release Process Note Users should upgrade to `openclaw` 2026.4.14 or newer. The latest npm release, `2026.4.14`, already includes the fix. ## Credits Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.
Status Published
Exploitability 0.5
Weighted Severity 5.7
Risk 2.9
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-862 Missing Authorization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00039 https://api.first.org/data/v1/epss?cve=CVE-2026-43572
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2026-43572
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2026-43572
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2026-43572
cvssv3.1_qr LOW https://github.com/advisories/GHSA-gc9r-867r-j85f
cvssv4 1.7 https://github.com/openclaw/openclaw
generic_textual LOW https://github.com/openclaw/openclaw
cvssv3.1 5.3 https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
cvssv4 1.7 https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
cvssv4 6.3 https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
generic_textual LOW https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
ssvc Track https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
cvssv4 1.7 https://github.com/openclaw/openclaw/pull/66033
generic_textual LOW https://github.com/openclaw/openclaw/pull/66033
cvssv3.1 5.3 https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
cvssv3.1_qr LOW https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
cvssv4 1.7 https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
cvssv4 6.3 https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
generic_textual LOW https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
ssvc Track https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
cvssv3.1 5.3 https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler
cvssv4 6.3 https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler
ssvc Track https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-43572
https://github.com/openclaw/openclaw
https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
https://github.com/openclaw/openclaw/pull/66033
https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
CVE-2026-43572 https://nvd.nist.gov/vuln/detail/CVE-2026-43572
GHSA-gc9r-867r-j85f https://github.com/advisories/GHSA-gc9r-867r-j85f
openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U Found at https://github.com/openclaw/openclaw
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)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U Found at https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
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)

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Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
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)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-05T14:23:37Z/ Found at https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U Found at https://github.com/openclaw/openclaw/pull/66033
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)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
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

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Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
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

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Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
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

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-05T14:23:37Z/ Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler
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

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unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler
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

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physical

low

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-05T14:23:37Z/ Found at https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler
Exploit Prediction Scoring System (EPSS)
Percentile 0.11979
EPSS Score 0.00039
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:54:03.102734+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-gc9r-867r-j85f/GHSA-gc9r-867r-j85f.json 38.6.0