CVE-2026-85513

StackStorm st2 NoOp RBAC backend actionexecutions.py privileges management

MEDIUM
6.3
CVSS Score
Published: September 4, 2026 at 12:30 PM UTC
Updated: September 8, 2026 at 05:18 PM UTC
1 product affected across 1 vendorStackStorm

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/398678
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/398678/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-85513
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/894916
ExploitIssue Tracking
Source: cverecord
https://github.com/StackStorm/st2/issues/6379
Product
Source: cverecord
https://github.com/StackStorm/st2/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-269CWE-266

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