CVE-2026-53504

NameCVE-2026-53504
DescriptionThumbor 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
thumbor (PTS)forky, sid7.8.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
thumborsource(unstable)7.8.0-1

Notes

https://github.com/thumbor/thumbor/security/advisories/GHSA-5vjc-7cxw-4w6j
Fixed by: https://github.com/thumbor/thumbor/commit/3f38fe1610d20168e91f76d432212de30727eb2e (7.8.0)

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