PT-2026-35970 · Berabuddies · Agentflow

Published 2026-04-29 · Updated 2026-04-29 · CVE-2026-7439

NVD

CVSS v3.1

4.4

Medium

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

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.

Exploit

Fix

Origin Validation Error

Weakness Enumeration

CWE-346

Related Identifiers

CVE-2026-7439

Affected Products

Agentflow

References · 4

• 🔥 https://github.com/berabuddies/agentflow/pull/18 · Exploit
• https://github.com/berabuddies/agentflow/commit/1667fa3 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-7439 · Security Note
• https://vulncheck.com/advisories/agentflow-local-web-api-content-type-validation-bypass · Note