SEPTEMBER 17, 2026
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Case File

CVE-2026-85513

MEDIUM · CVSS 6.3 EPSS 0.25% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-04 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

StackStorm versions up to 3.9.0 are vulnerable due to improper privilege management in the NoOp RBAC backend, specifically in the function handling user queries. This weakness allows remote attackers to exploit the system without requiring Jinja RBAC, potentially leading to unauthorized access. Organizations using affected versions, particularly those with default installations and RBAC disabled, should prioritize patching this vulnerability to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-85513
Severity
MEDIUM
CVSS
6.3
EPSS
0.25%

Original NVD 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.