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CVE-2026-53504

HIGH CVSS: 7.5 Published: 2026-07-31 Modified: 2026-08-01

Description

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, the convolution filter regular expression performs exponential backtracking on crafted repeated numeric input, allowing a URL request to exhaust processing time. This issue is fixed in 7.8.0.

Affected Platforms

Unknown

Weakness Type

CWE-400

References