CVE-2026-119673 mongofiles may write outside the working directory through a symlink
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-119673?
CVE-2026-119673 is a low-severity vulnerability in MongoDB Database Tools, published on 3 Nov 2026.
Official description
MongoDB Database Tools mongofiles does not resolve existing parent-directory symlinks when validating output paths for get_regex. An unauthorized user who can both upload a GridFS file and place a symlink in the operator's download working directory can cause a later retrieval to create a file containing unauthorized user-controlled data outside that directory, using the operator process's filesystem permissions. The issue can occur with default traversal and overwrite settings. Exploitation requires an operator to retrieve matching files from the affected working directory; the demonstrated default behavior creates a new file rather than overwriting an existing file. This issue affects MongoDB Database Tools versions 100.2.0 through versions before 100.20.1.
Weakness: CWE-59
Which versions are affected by CVE-2026-119673?
How do I fix CVE-2026-119673?
No fix has been published for CVE-2026-119673 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-119673 being exploited?
There is no known exploitation of CVE-2026-119673 in the wild and no public exploit code.
Sources
Also known as GHSA-3jx2-r7fh-fm2g, UBUNTU-CVE-2026-119673.