Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Gotenberg v8, versions up to and including 8.29.1, has an ExifTool metadata write blocklist that can be bypassed with ExifTool's group-prefix syntax, such as "File:FileName". An unauthenticated attacker with network access to the service can then rename, move, or create hard links and symbolic links to files inside the container, and in some deployments read or overwrite files. The source gives few details on the exact preconditions. No fixed version is listed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.2 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0029, the 21st percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:05 UTC First seen by agentprime
- 31 Oct 2026, 15:05 UTC Confirmed by OSV