Description
Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, file_loader decodes percent-encoded path segments after its root-boundary validation, allowing traversal outside FILE_LOADER_ROOT_PATH through watermark or frame filter input. This issue is fixed in 7.8.0.
Severity (CVSS)
| Base score | 8.7 |
|---|---|
| Severity | High |
| Version | CVSS 4.0 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| Provided by | CNA |
Weaknesses
- CWE-22 — CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
| Vendor | Product | Versions |
|---|---|---|
| thumbor | thumbor | < 7.8.0 |
References
- https://github.com/thumbor/thumbor/security/advisories/GHSA-cj54-hpcc-gj6h (x_refsource_CONFIRM)
- https://github.com/thumbor/thumbor/commit/3b986d13677b30fe6651c8c72ebb25957ac0a40d (x_refsource_MISC)
- https://github.com/thumbor/thumbor/releases/tag/7.8.0 (x_refsource_MISC)
Generated from the official CVE List on 01 Aug 2026 07:04 UTC.