CVE-2026-66415
Authenticated SSRF/LFI in Leantime 3.6.2 allows file and metadata read
Is CVE-2026-66415 being exploited?
Not confirmed. CVE-2026-66415 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-66415?
CVE-2026-66415 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-66415?
Yes. A fix has been recorded for CVE-2026-66415. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-66415 affect?
CVE-2026-66415 affects Leantime 3.6.2 (Blueprints::import JSON-RPC API). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-66415?
Update when vendor patch available; block JSON-RPC access and metadata egress; validate filenames
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attackers can perform SSRF to cloud metadata and read arbitrary server files via crafted filenames, enabling data/credential theft.
Immediate action required
- affected<= 3.6.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.