High
Heym before 0.0.53 Slack Webhook Signature Verification Bypass
Heym before 0.0.53 fails to verify Slack request signatures when trigger nodes lack credential IDs or have empty signing secrets. Remote unauthenticated attackers can send forged Slack events to known webhook URLs to trigger workflows with the owner's credentials.
Announced Source revision 1
Original source ↗CVE-2026-101049
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-2026-101049
heym
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": "heymrun",
"product": "heym",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "0.0.53",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "0.0.53",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-101049
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #3130 · Revision 1
- Added to Heist Feed
- Publisher date