CVE-2026-123619 Lektor through 3.3.14 and 3.4.0b15 Path Traversal via Admin API Drive-Letter Paths
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-123619?
CVE-2026-123619 is a medium-severity vulnerability in lektor, published on 6 Nov 2026.
Official description
Lektor through 3.3.14 and 3.4.0b15 contains an absolute path traversal vulnerability in the admin API on Windows that allows attackers to escape the project directory by supplying drive-letter paths that cleanup_path does not normalise. Attackers can use a malicious web page with cross-site requests or DNS rebinding against the unauthenticated local server to recursively delete directories via deleterecord or write attacker-controlled files via newattachment.
Weakness: CWE-36
Which versions are affected by CVE-2026-123619?
How do I fix CVE-2026-123619?
No fix has been published for CVE-2026-123619 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-123619 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-123619 exists.
Sources
Also known as GHSA-9pg5-8hpj-vq4p.