Vulnerabilities CVE-2026-53502

CVE-2026-53502

High

Open

TLP:CLEAR

Thumbor has path traversal via post-validation URL decoding bypass in file_loader

NVD CVE.org

AI Analysis

No AI analysis yet.

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.

Details

CVSS Score: 8.7
EPSS Score ⓘ: 0.36%

28.7th percentile
CVSS 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
Confidence: 90%
Published: Jul 31, 2026
Last Modified: Jul 31, 2026

Notes

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

No opinions yet. Be the first to assess this intelligence.