CVE-2026-7439
AgentFlow Local Web API Content-Type Validation Bypass
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| AgentFlow berabuddies |
≥ 0; < 1667fa3 (affected, git)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 4.8 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 | CNA: VulnCheck |
| 3.1 / 4.4 medium |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N | CNA: VulnCheck |
Exploit evidence
- https://github.com/berabuddies/agentflow/pull/18
exploit · ADP: CISA-ADP
References
- https://github.com/berabuddies/agentflow/pull/18CNA: VulnCheck · issue-tracking, patch
- https://github.com/berabuddies/agentflow/commit/1667fa3CNA: VulnCheck · patch
- https://www.vulncheck.com/advisories/agentflow-local-web-api-content-type-validation-bypassCNA: VulnCheck · third-party-advisory
- https://github.com/berabuddies/agentflow/pull/18ADP: CISA-ADP · exploit
For agents and automation
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