openclaw Slack before 2026.8.1 Authorization Bypass
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.
CVE-2026-100531
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-100531
slack
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "openclaw",
"product": "slack",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2026.8.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2026.8.1",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/%40openclaw/slack",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-100531
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12658 · Revision 1
- Added to Heist Feed
- Publisher date