GHSA-fcvx-5cxc-v5p8

Suggest an improvement
Source
https://github.com/advisories/GHSA-fcvx-5cxc-v5p8
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-fcvx-5cxc-v5p8/GHSA-fcvx-5cxc-v5p8.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-fcvx-5cxc-v5p8
Aliases
  • CVE-2026-53851
Downstream
Published
2026-06-18T20:13:11Z
Modified
2026-06-18T20:15:17.372265908Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • 6.3 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
OpenClaw: Slack reaction events could ignore reaction notification settings
Details

Summary

Slack reaction events could ignore reaction notification settings. In affected versions, a Slack reaction event delivered to the configured app could enter the agent pipeline even when reaction notifications were disabled.

This advisory is scoped to the named feature and configuration. It does not change OpenClaw's trusted-operator model: authenticated Gateway operators, installed plugins, and intentional local execution surfaces remain trusted unless a separate policy, approval, allowlist, sandbox, or auth boundary is crossed.

Impact

When the affected feature is enabled and reachable, this could trigger unintended agent processing for reaction events. Practical impact depends on the operator's configuration and whether lower-trust input can reach that path.

Patched Versions

The first stable patched version is 2026.5.12.

Mitigations

disable or restrict Slack reaction event subscriptions until patched if this path is not needed. As general hardening, keep channel and tool allowlists narrow, avoid sharing one Gateway between mutually untrusted users, and disable the affected feature when it is not needed.

Database specific
{
    "nvd_published_at": null,
    "github_reviewed_at": "2026-06-18T20:13:11Z",
    "github_reviewed": true,
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-285"
    ]
}
References

Affected packages

npm / openclaw

Package

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2026.5.12

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-fcvx-5cxc-v5p8/GHSA-fcvx-5cxc-v5p8.json"
last_known_affected_version_range
"<= 2026.5.7"