Vulnerability Description
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg only checks if the tag is exactly FileName, so System:FileName slips right through and ExifTool happily renames the file. This allows remote attackers to move, rename, and change permissions for arbitrary files. This vulnerability is fixed in 8.31.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Thecodingmachine | Gotenberg | < 8.31.0 |
Related Weaknesses (CWE)
References
- https://github.com/gotenberg/gotenberg/security/advisories/GHSA-62p3-hvxx-fxg4ExploitVendor Advisory
- https://github.com/gotenberg/gotenberg/security/advisories/GHSA-62p3-hvxx-fxg4ExploitVendor Advisory
FAQ
What is CVE-2026-40893?
CVE-2026-40893 is a vulnerability with a CVSS score of 8.2 (HIGH). Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg only checks if the tag is exactly FileName, so System:FileName slips right through and ExifTool happily renames th...
How severe is CVE-2026-40893?
CVE-2026-40893 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40893?
Check the references section above for vendor advisories and patch information. Affected products include: Thecodingmachine Gotenberg.