Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N L N L L L 2.1 .0043 34.6 —
AFFECTED Product Versions Fixed st2 3.0 – —
TIMELINE Sep 4 Reserved by VulDB Sep 4 Published (CNA: VulDB) Sep 8 EXPLOIT PUBLISHED — CVE-2026-85513 (StackStorm st2). Public exploit reference added.
A weakness has been identified in StackStorm st2 up to 3.9.0. This issue affects the function assert_user_is_admin_if_user_query_param_is_provided of the file st2api/st2api/controllers/v1/actionexecutions.py of the component NoOp RBAC backend. This manipulation of the argument User causes improper privilege management. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. Prior advisory CVE-2022-44009 was reported as a follow-up on the same sink, but this issue is distinct: it needs no Jinja RBAC und affects default install with RBAC disabled. The project was informed of the problem early through an issue report but has not responded yet.
| Date | Event | Detail |
|---|---|---|
| September 4, 2026 | Reserved | Reserved by VulDB |
| September 4, 2026 | Published | Published (CNA: VulDB) |
| September 8, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-85513 (StackStorm st2). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| StackStorm | st2 | — | 3.0 | — |
Authoritative record: CVE-2026-85513 at cve.org
Vendors: stackstorm
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-85513 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
