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  5. CVE-2026-88978

CVE-2026-88978: Hatchet DurableTask WorkerStatus gRPC resolves caller-supplied durable-task UUIDs via ListSatisfiedEntries with no tenant_id filter

September 22, 2026

This advisory requires an attacker to successfully guess a durable task’s external uuid belonging to another tenant. External ids are generated uuid v4s (uuid.New() in Go), so exploitation requires prior knowledge of a target task UUID through an out-of-band channel. Thus, while the following environments are impacted, there is an extremely low probability it would be exploited.

References

  • github.com/advisories/GHSA-992g-9cr3-vm5x
  • github.com/hatchet-dev/hatchet/commit/15bc7923d3a8ebfeb0d88c19160dd24828921e85
  • github.com/hatchet-dev/hatchet/security/advisories/GHSA-992g-9cr3-vm5x
  • nvd.nist.gov/vuln/detail/CVE-2026-88978

Code Behaviors & Features

Detect and mitigate CVE-2026-88978 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 0.106.1

Fixed versions

  • 0.106.1

Solution

Upgrade to version 0.106.1 or above.

Impact 4.3 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-639: Authorization Bypass Through User-Controlled Key
  • CWE-863: Incorrect Authorization

Source file

go/github.com/hatchet-dev/hatchet/CVE-2026-88978.yml

Spotted a mistake? Edit the file on GitLab.

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