CVE-2026-53504

Published: Jul 31, 2026Modified: Sep 8, 2026Deferred

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-400

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (4)

https://github.com/thumbor/thumbor/commit/3f38fe1610d20168e91f76d432212de30727eb2e

Source: security-advisories@github.com

https://github.com/thumbor/thumbor/releases/tag/7.8.0

Source: security-advisories@github.com

https://github.com/thumbor/thumbor/security/advisories/GHSA-5vjc-7cxw-4w6j

Source: security-advisories@github.com

https://github.com/thumbor/thumbor/security/advisories/GHSA-5vjc-7cxw-4w6j

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.