CVE-2026-53502 in Thumborinfo

Summary

by MITRE • 07/31/2026

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.

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Responsible

GitHub M

Reservation

06/09/2026

Disclosure

07/31/2026

Moderation

accepted

CPE

ready

EPSS

0.00000

KEV

no

Activities

very low

Sources

MITREhttps://www.cve.org/CVERecord?id=CVE-2026-53502
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-53502
CVE Detailshttps://www.cvedetails.com/cve/CVE-2026-53502/

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