CVE-2026-7439

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.

CVSS 4.0

4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.4CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

0.09% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-26)

CWE

CWE-346

Published

2026-04-29

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://github.com/berabuddies/agentflow/commit/1667fa3
• https://github.com/berabuddies/agentflow/pull/18
• https://www.vulncheck.com/advisories/agentflow-local-web-api-content-type-validation-bypass
• https://github.com/berabuddies/agentflow/pull/18

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