HIGH 8.7 NVD
CVE-2026-53502
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 valida
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.
References
- https://github.com/thumbor/thumbor/commit/3b986d13677b30fe6651c8c72ebb25957ac0a40d
- https://github.com/thumbor/thumbor/releases/tag/7.8.0
- https://github.com/thumbor/thumbor/security/advisories/GHSA-cj54-hpcc-gj6h
- https://github.com/thumbor/thumbor/security/advisories/GHSA-cj54-hpcc-gj6h
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-07-31 via NVD.
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