CVE catalog
CVE-2026-53504
UBUNTU-CVE-2026-53504
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.61% · Oct 27, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | thumbor | 14 | 6.3.2-3 | vulnerable |
| Debian | thumbor | 14 | 6.3.2-4 | vulnerable |
| Debian | thumbor | 14 | 6.5.1-1 | vulnerable |
| Debian | thumbor | 14 | 6.5.1-2 | vulnerable |
| Debian | thumbor | 14 | 6.5.1-3 | vulnerable |
| Debian | thumbor | 14 | 6.5.1-4 | vulnerable |
| Debian | thumbor | 14 | 6.5.1-5 | vulnerable |
| Debian | thumbor | 14 | 6.5.1-6 | vulnerable |
| Debian | thumbor | 14 | 6.5.1-7 | vulnerable |
| Debian | thumbor | 14 | 6.7.0-1 | vulnerable |
| Debian | thumbor | 14 | 7.7.7-1 | vulnerable |
| Debian | thumbor | 14 | 7.7.7-2 | vulnerable |
| Debian | thumbor | 14 | 7.7.7-3 | vulnerable |
| Debian | thumbor | 14 | 7.7.7-4 | vulnerable |
| Debian | thumbor | 14 | 7.7.7-5 | vulnerable |
| Debian | thumbor | 14 | 7.7.7-6 | vulnerable |
| Debian | thumbor | 14 | 7.8.0-1 | fixed |
| Ubuntu | thumbor | 26.04 | 7.7.7-4 | vulnerable |
| Ubuntu | thumbor | 26.04 | 7.7.7-5 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | thumbor | deb | 14 | 7.8.0-1 | Not reported | DEBIAN-CVE-2026-53504 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: