Security Advisory

CVE-2026-53505

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-31 19:00:22

Last updated 2026-07-31 19:00:22

Assigner GitHub_M

CVSS score not scored

State PUBLISHED

Description

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:proportion(<value>) filter does not enforce an upper bound on <value> and runs in the post-transform phase. An attacker can trigger extremely large resizes (CPU/memory exhaustion) and cause denial of service. This issue is fixed in 7.8.0.

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