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.
CVSS 7.5EPSS 0.33899999999999997%Risk 0.77
View source- Published
- 2026-07-31 19:17:10
- Affected versions
- <7.8.0
- Type
- Web application
- Last modified
- 2026-08-03 18:16:39
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H