Hatchet: Cross-Tenant Durable Task Event Log Disclosure via Missing Authorization Check
### Summary The `GET /api/v1/stable/durable-tasks/{durable-task}` endpoint (`listDurableEventLog`) is missing tenant authorization validation, allowing any authenticated user to read durable task event logs from any tenant. ### Impact This CVE requires the attacker to successfully guess the target UUID. Any authenticated Hatchet user can read durable task event logs from any other tenant, exposing: - Task display names and workflow identifiers - User messages (may contain sensitive business data) - Wait conditions and branching logic - Timing information
GHSA-g26x-m427-f48f
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: osv:GHSA-g26x-m427-f48f
github.com/hatchet-dev/hatchet
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 0.91.1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.91.1"
}
]
}
],
"package": {
"name": "github.com/hatchet-dev/hatchet",
"purl": "pkg:golang/github.com/hatchet-dev/hatchet",
"ecosystem": "Go"
},
"database_specific": {
"source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-g26x-m427-f48f/GHSA-g26x-m427-f48f.json"
}
}
]- Related CVEs
- CVE-2026-63342
Source reference:
/aliases
Publisher severity
No explicit severity was provided.
- Event
- #63926 · Revision 1
- Added to Heist Feed
- Publisher date