CVE-2026-85513 (GCVE-0-2026-85513)
Vulnerability from cvelistv5 – Published: 2026-09-04 12:30 – Updated: 2026-09-04 12:30
VLAI
EPSS
VEX
Title
StackStorm st2 NoOp RBAC backend actionexecutions.py privileges management
Summary
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.
Severity
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/398678 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/398678/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-85513 | third-party-advisory |
| https://vuldb.com/submit/894916 | third-party-advisory |
| https://github.com/StackStorm/st2/issues/6379 | exploitissue-tracking |
| https://github.com/StackStorm/st2/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| StackStorm | st2 |
Affected:
3.0
Affected: 3.1 Affected: 3.2 Affected: 3.3 Affected: 3.4 Affected: 3.5 Affected: 3.6 Affected: 3.7 Affected: 3.8 Affected: 3.9.0 cpe:2.3:a:stackstorm:st2:*:*:*:*:*:*:*:* |
{
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{
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{
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{
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{
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{
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"version": "3.7"
},
{
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},
{
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}
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},
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}
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{
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{
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"time": "2026-09-04T07:40:53.000Z",
"value": "VulDB entry last update"
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"title": "StackStorm st2 NoOp RBAC backend actionexecutions.py privileges management",
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"cveMetadata": {
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"datePublished": "2026-09-04T12:30:10.474Z",
"dateReserved": "2026-09-04T05:35:42.404Z",
"dateUpdated": "2026-09-04T12:30:10.474Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-85513",
"date": "2026-09-05",
"epss": "0.00248",
"percentile": "0.16072"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-85513\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-09-04T13:20:11.130\",\"lastModified\":\"2026-09-04T13:22:24.073\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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. 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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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