SSRF in Leantime
CVE-2026-66415
Leantime 3.6.2 contains a server-side request forgery and local file inclusion vulnerability that allows authenticated attackers to read internal resources by passing unsanitized user-supplied filenames to file_get_contents() in the Blueprints::import() method without path validation. Attackers can submit crafted filenames containing URL wrappers or path traversal sequences through the JSON-RPC API endpoint to access cloud metadata services or read arbitrary files from the server filesystem.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Leantime — versions 0
Weakness classification (CWE)
References
- Pull Request (issue-tracking, patch)
- GitHub Security Advisory (GHSA-gphg-6h4g-mg22) (vendor-advisory)
- Product Repository (product)
- www.vulncheck.com/advisories/leantime-server-side-request-forgery-and-local-fil… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-66415?
- CVE-2026-66415 is a high-severity vulnerability in Leantime, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-07-30.
- How severe is CVE-2026-66415?
- High severity. CVSS v3 base score is 8.5 out of 10.