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🛡️ GHSA-xg59-f45v-9r9j — openclaw (CVE-2026-34506)

🟢 CVSS 2.0 — Low ✅ No Known Exploit CWE-863 OSV
2.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Duplicate Advisory: OpenClaw's MS Teams sender allowlist bypass when route allowlist is configured and sender allowlist is empty

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-g7cr-9h7q-4qxq. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesizes wildcard sender authorization, permitting any sender in the matched team/channel to trigger replies in allowlisted Teams routes.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Weakness class

GHSA-xg59-f45v-9r9j is classified as CWE-863: Incorrect Authorization. An authorisation check runs but reaches the wrong conclusion, permitting actions it should refuse.

Affected software

GHSA-xg59-f45v-9r9j is recorded against 1 package.

  • openclaw

Timeline and source

Published on 31 March 2026 and last revised on 6 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
www.vulncheck.com (Web)

Details

Severity LOW
CVSS Score 2.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/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
CWE CWE-863
Public Exploit ✅ No
Source OSV
Published 2026-03-31
Updated 2026-08-20
Modified 2026-04-06
Fix URL N/A

Affected Packages

Software From version Fixed in
openclaw — —

Similar Threats

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