CVE-2026-7439: CWE-346: Origin Validation Error in berabuddies AgentFlow
CVE-2026-7439 is a medium severity vulnerability in berabuddies AgentFlow where the local web API does not enforce application/json content-type validation on certain POST endpoints. This allows attackers to bypass origin validation and trust-boundary enforcement via non-JSON content types, potentially enabling abuse of the localhost API through browser-driven or local cross-origin requests. No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
AgentFlow's local web API accepts POST requests to /api/runs and /api/runs/validate endpoints without enforcing that the content type is application/json. This origin validation error (CWE-346) allows attackers to bypass trust boundaries by submitting non-JSON content types, which can be exploited through browser-driven or local cross-origin requests. The vulnerability affects version 0 of AgentFlow and has a CVSS 4.8 (medium) score. There is no vendor advisory or patch available at this time.
Potential Impact
The vulnerability allows attackers to bypass trust-boundary enforcement on sensitive local API operations by exploiting weak content-type validation. This could enable attack chains against the local control plane of the AgentFlow product. However, the attack vector is limited to local or browser-driven cross-origin requests, and no known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting access to the local API endpoints and monitor for suspicious local cross-origin requests. Avoid exposing the AgentFlow local API to untrusted environments.
CVE-2026-7439: CWE-346: Origin Validation Error in berabuddies AgentFlow
Description
CVE-2026-7439 is a medium severity vulnerability in berabuddies AgentFlow where the local web API does not enforce application/json content-type validation on certain POST endpoints. This allows attackers to bypass origin validation and trust-boundary enforcement via non-JSON content types, potentially enabling abuse of the localhost API through browser-driven or local cross-origin requests. No official patch or remediation guidance is currently available.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
AgentFlow's local web API accepts POST requests to /api/runs and /api/runs/validate endpoints without enforcing that the content type is application/json. This origin validation error (CWE-346) allows attackers to bypass trust boundaries by submitting non-JSON content types, which can be exploited through browser-driven or local cross-origin requests. The vulnerability affects version 0 of AgentFlow and has a CVSS 4.8 (medium) score. There is no vendor advisory or patch available at this time.
Potential Impact
The vulnerability allows attackers to bypass trust-boundary enforcement on sensitive local API operations by exploiting weak content-type validation. This could enable attack chains against the local control plane of the AgentFlow product. However, the attack vector is limited to local or browser-driven cross-origin requests, and no known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting access to the local API endpoints and monitor for suspicious local cross-origin requests. Avoid exposing the AgentFlow local API to untrusted environments.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-04-29T15:46:44.053Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f24c6ecbff5d86103a5326
Added to database: 4/29/2026, 6:22:38 PM
Last enriched: 4/29/2026, 6:36:19 PM
Last updated: 4/29/2026, 7:52:41 PM
Views: 4
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