CVE-2026-100531

MEDIUM 6.5

openclaw Slack before 2026.8.1 Authorization Bypass

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack download-file handler: when a file lacks the share metadata used to prove it belongs to the requested conversation, the conversation-authorization check fails open. An authenticated caller restricted to a single conversation who knows or obtains a file identifier can therefore download file contents from outside that conversation's scope, disclosing data across configured conversation boundaries. The issue does not allow listing arbitrary Slack files and does not bypass Slack authentication itself. The issue is fixed in version 2026.8.1.

CWE	CWE-639
Vendor	openclaw
Product	slack
Published	Sep 26, 2026

Stay Ahead of the Next One

Get instant alerts for openclaw slack

Be the first to know when new medium vulnerabilities affecting openclaw slack are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

openclaw / slack

0 < 2026.8.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-v7hh-7676-rg67 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-slack-before-2026.8.1-authorization-bypass