CVE-2026-86539
CVE-2026-86539
knowns through 0.33.0 contains a server-side request forgery vulnerability in the POST /api/embedding-models/test endpoint that issues outbound requests to caller-supplied destinations without validation. Attackers can enumerate internal hosts and cloud metadata endpoints by observing transport error messages that reveal network reachability information.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001
Weakness classification (CWE)
References
- Embedding-model test issues request to caller-supplied apiBase and returns the transport error (v0.33.0, unfixed) (technical-description)
- gitLsRemoteHead runs git ls-remote against a caller-supplied URL (v0.33.0, unfixed) (technical-description)
- GitHub Security Advisory (GHSA-qx9v-m9gg-p5jg) (vendor-advisory)
- VulnCheck Advisory: knowns through 0.33.0 Server-Side Request Forgery via embedding-models endpoint (third-party-advisory)
Frequently asked questions
- What is CVE-2026-86539?
- CVE-2026-86539 is a high-severity vulnerability, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.2/10. Published 2026-09-07.
- How severe is CVE-2026-86539?
- High severity. CVSS v3 base score is 7.2 out of 10.