CVE-2026-53823 Details
Description
OpenClaw before 2026.5.3 contains a privilege escalation vulnerability in the allowFrom feature that binds to mutable Slack display names. Attackers with Slack account access can change display name metadata to match policy entries, potentially gaining unauthorized agent access intended for other identities.
A privilege escalation vulnerability has been identified in OpenClaw versions prior to 2026.5.3, within the allowFrom feature that interacts with changeable Slack display names. This vulnerability allows attackers with access to a Slack account to alter display name metadata to align with policy entries, potentially gaining unauthorized agent access meant for other identities.
Users are advised to use stable Slack user IDs in allowlists until the vulnerability is patched. As a general hardening measure, keep channel and tool allowlists narrow, avoid sharing one Gateway between mutually untrusted users, and disable the affected feature when it is not needed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/openclaw/openclaw/security/advisories/GHSA-c29c-2q9c-pc86 | [email protected] | MitigationVendor Advisory |
| https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-mutable-slack-display-names-in-allowfrom | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-290 | Authentication Bypass by Spoofing | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openclaw openclaw | < 2026.5.3 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 16, 2026 | Initial Analysis | [email protected] |
| Jun 12, 2026 | New CVE Received | [email protected] |