thumbor vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary

CVE-2026-53502Highthumbor: Thumbor has path traversal via post-validation URL decoding bypass in file_loader CVE-2026-53505Highthumbor: Thumbor proportion filter allows unbounded post-transform resize leading to remote DoS CVE-2026-53504Highthumbor: Thumbor has Regex Denial of Service (ReDoS) in `convolution` filter CVE-2026-53503Highthumbor: Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS CVE-2026-53501Highthumbor: Thumbor has HMAC validation bypass via multiple .replace() calls when removing URL signature CVE-2026-53500Highthumbor: Thumbor treats ALLOWED_SOURCES string patterns as unescaped regex, allowing hostname bypass via wildcard dot

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