CVE-2026-53851

MEDIUM EPSS 9.0%
Published Jun 16, 20262w ago · Modified Jun 17, 20261w ago
6.3 CVSS 4.0
Medium
Find Similar
Published Jun 16, 2026 2w ago
Last Modified Jun 17, 2026 1w ago

Description

OpenClaw before 2026.5.12 contains a notification bypass vulnerability allowing Slack reaction events to enter the agent pipeline despite disabled reaction notifications. Attackers can trigger unintended agent processing by sending reaction events when the feature is enabled, potentially leading to unauthorized processing of lower-trust input.

CVSS Details

Base Score
6.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
9.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 9

VendorProductVersionRange
openclawopenclaw* <2026.5.12
openclawopenclaw2026.5.12any
openclawopenclaw2026.5.12any
openclawopenclaw2026.5.12any
openclawopenclaw2026.5.12any
openclawopenclaw2026.5.12any
openclawopenclaw2026.5.12any
openclawopenclaw2026.5.12any
openclawopenclaw2026.5.12any

References 2

  • github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-fcvx-5cxc-v5p8
    Vendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/openclaw-slack-reaction-event-notification-bypass
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.