Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-xgwg-m42c-8q62
Advisory ID github_osv/GHSA-xgwg-m42c-8q62
Aliases
Summary Duplicate Advisory: OpenClaw: Slack system events bypass sender authorization in member and message subtype handlers ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-v8cg-4474-49v8. This link is maintained to preserve external references. ## Original Description OpenClaw versions prior to 2026.2.26 fail to enforce sender authorization in member and message subtype system event handlers, allowing unauthorized events to be enqueued. Attackers can bypass Slack DM allowlists and per-channel user allowlists by sending system events from non-allowlisted senders through message_changed, message_deleted, and thread_broadcast events.
Status Published
Exploitability 0.5
Weighted Severity 4.9
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-863 Incorrect Authorization
System Score Found at
cvssv3.1 5.4 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xgwg-m42c-8q62/GHSA-xgwg-m42c-8q62.json
cvssv4 5.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xgwg-m42c-8q62/GHSA-xgwg-m42c-8q62.json
generic_textual MODERATE
Reference id Reference type URL
3d30ba18a2aba1e1b302e77ff33145c3b06c01c8 Other https://github.com/openclaw/openclaw/commit/3d30ba18a2aba1e1b302e77ff33145c3b06c01c8
CVE-2026-32895 https://nvd.nist.gov/vuln/detail/CVE-2026-32895
GHSA-v8cg-4474-49v8 Advisory https://github.com/openclaw/openclaw/security/advisories/GHSA-v8cg-4474-49v8
openclaw-sender-authorization-bypass-in-slack-system-event-handlers Advisory https://www.vulncheck.com/advisories/openclaw-sender-authorization-bypass-in-slack-system-event-handlers
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:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xgwg-m42c-8q62/GHSA-xgwg-m42c-8q62.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:L/AT:N/PR:L/UI:N/VC:L/VI:L/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 Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xgwg-m42c-8q62/GHSA-xgwg-m42c-8q62.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

There are no SSVC decisions available.