AgentFlow Local Web API Content-Type Validation Bypass_CVE-2026-7439

4.8 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-7439

Source VulnCheck

Published Apr 29, 2026 at 18:06

Affected Product

Vendor berabuddies

Product AgentFlow

Affected Versions berabuddies AgentFlow 0

CWE Classification

CWE-346

References

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    "published": "2026-04-29T18:06:05.772Z",
    "modified": "2026-04-29T18:06:05.772Z",
    "type": "cve",
    "title": "AgentFlow Local Web API Content-Type Validation Bypass",
    "source": "VulnCheck",
    "references": "https://github.com/berabuddies/agentflow/pull/18\nhttps://github.com/berabuddies/agentflow/commit/1667fa3\nhttps://www.vulncheck.com/advisories/agentflow-local-web-api-content-type-validation-bypass",
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