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  4. CVE 2026 88978 hatchet durabletask workerstatus grpc resolves
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Back to active CVEs
Medium · CVSS 4.3CVE-2026-88978GHSA-992G-9CR3-VM5X

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

Answer in brief

CVE-2026-88978 records a Medium severity (CVSS 4.3) vulnerability in Hatchet DurableTask WorkerStatus gRPC resolves caller-supplied durable-task UUIDs via ListSatisfiedEntries with no tenant_id filter. The current sources do not mark it as known exploited. The current feed maps hatchet-dev/hatchet (generic), github.com/hatchet-dev/hatchet (go), github.com/hatchet-dev/hatchet (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 21, 2026Updated Oct 1, 2026Source checked Nov 5, 2026First seen by HOL Sep 21, 2026Material review Oct 1, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-639, CWE-863
Source
CVE List V5
Source checked
Nov 5, 2026
References
5 linked sources
Open source record

Key facts

Risk
Medium · CVSS 4.3
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps hatchet-dev/hatchet (generic), github.com/hatchet-dev/hatchet (go), github.com/hatchet-dev/hatchet (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
hatchet-dev/hatchetgeneric<0.106.10.106.1
github.com/hatchet-dev/hatchetgo<0.106.10.106.1
github.com/hatchet-dev/hatchetgo>=0 <0.106.10.106.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for hatchet-dev/hatchet, github.com/hatchet-dev/hatchet, github.com/hatchet-dev/hatchet.
  2. 2Review the reported fix. Update hatchet-dev/hatchet to 0.106.1; github.com/hatchet-dev/hatchet to 0.106.1; github.com/hatchet-dev/hatchet to 0.106.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 21, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
  • GitHub security advisorygithub.com
Upstream source description

Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.106.1, the WorkerStatus gRPC polling path in pkg/repository/durable_events.go passes caller-supplied durable task, node, and branch identifiers to ListSatisfiedEntries without a tenant filter, allowing an authenticated tenant worker that knows another tenant's durable-task UUID to retrieve matching durable event-log records. The UUIDv4 requirement makes exploitation unlikely, and single-tenant deployments are unaffected in practice. This issue is fixed in version 0.106.1.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Dagu MCP DAG specification read bypasses path containment and workspace isolationAlso CWE-863
  • Insecure direct object reference (IDOR) vulnerability in the MatchPoint APIAlso CWE-639
  • Model Context Protocol TypeScript SDK: Server bearer authentication accepted tokens issued for another serviceAlso CWE-863
  • Rucio: Authorisation Bypass on REST API endpoint for signing URLsAlso CWE-639
  • Kubeflow Pipelines API server lacks authorization for shared pipeline uploadsAlso CWE-639
  • Kubeflow Pipelines: Cross-tenant execution-cache poisoning / output substitution via a namespace-blind cache key in the cache webhook (multi-user)Also CWE-639