Description
AgentFlow's local web API accepts non-JSON content types on POST /api/runs and POST /api/runs/validate endpoints without enforcing application/json validation, allowing attackers to bypass trust-boundary enforcement on sensitive operations. Attackers can exploit this content-type validation weakness through browser-driven or local cross-origin requests to abuse the localhost API and enable attack chains against the local control plane.
Published: 2026-04-29
Score: 4.8 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

Wed, 29 Apr 2026 18:30:00 +0000

Type Values Removed Values Added
Description AgentFlow's local web API accepts non-JSON content types on POST /api/runs and POST /api/runs/validate endpoints without enforcing application/json validation, allowing attackers to bypass trust-boundary enforcement on sensitive operations. Attackers can exploit this content-type validation weakness through browser-driven or local cross-origin requests to abuse the localhost API and enable attack chains against the local control plane.
Title AgentFlow Local Web API Content-Type Validation Bypass
Weaknesses CWE-346
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-29T19:30:32.946Z

Reserved: 2026-04-29T15:46:44.053Z

Link: CVE-2026-7439

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-29T19:16:26.870

Modified: 2026-04-29T19:16:26.870

Link: CVE-2026-7439

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses