Vulnerability in Berabuddies Agentflow
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Berabuddies Agentflow — versions 0
Weakness classification (CWE)
References
- github.com/berabuddies/agentflow/pull/18 (issue-tracking)
- github.com/berabuddies/agentflow/commit/1667fa3 (patch)
- www.vulncheck.com/advisories/agentflow-local-web-api-content-type-validation-by… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-7439?
- CVE-2026-7439 is a medium-severity vulnerability in Berabuddies Agentflow, classified under Origin Validation Error. CVSS score: 4.4/10. Published 2026-04-29.
- How severe is CVE-2026-7439?
- Medium severity. CVSS v3 base score is 4.4 out of 10.