CVE-2026-53500

thumbor: Thumbor is an open-source photo thumbnail service by globo.com

CVE-2026-53500 is fixed in thumbor on 1 platform by DEBIAN-CVE-2026-53500 (version 7.8.0-1), released August 1, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.2
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0050
42nd percentile

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, the ALLOWED_SOURCES configuration passes plain strings to re.match() without escaping dots, so a hostname differing at dot positions can match the allowlist. This issue is fixed in 7.8.0.

Where it's fixed

ProductFixed inFixReleased
Linux
thumbor · Debian 14 7.8.0-1 DEBIAN-CVE-2026-53500 Aug 1, 2026

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