CVE-2026-53502
8.7
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| thumbor | thumbor | < 7.8.0 | affected |
Weaknesses
- CWE-22: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
Additional References
References
- https://github.com/thumbor/thumbor/security/advisories/GHSA-cj54-hpcc-gj6h
- https://github.com/thumbor/thumbor/commit/3b986d13677b30fe6651c8c72ebb25957ac0a40d
- https://github.com/thumbor/thumbor/releases/tag/7.8.0
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