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CVE-2026-7439

MEDIUM

4.4

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.

CVE Details

CVSS v3.1 Score4.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published4/29/2026

Last Modified4/30/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-346

References

https://github.com/berabuddies/agentflow/commit/1667fa3(disclosure@vulncheck.com)

https://github.com/berabuddies/agentflow/pull/18(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/agentflow-local-web-api-content-type-validation-bypass(disclosure@vulncheck.com)

https://github.com/berabuddies/agentflow/pull/18(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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