cvedb.io
CVE-2026-48959
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-05-27T04:16:31.093 · Last modified 2026-06-17T10:55:25.097

Summary

IO::Uncompress::Unzip versions before 2.220 for Perl allow CPU exhaustion via per-byte read loop in fastForward. fastForward() compares length $offset (the digit count of the offset, 1 to 19) against the chunk size $c instead of $offset itself, so $c shrinks from 16 KiB to 1-19 bytes per iteration. Extracting a named entry from an attacker supplied zip via IO::Uncompress::Unzip->new($zip, Name => $target) drives a per-byte read loop scaling with the entry's compressed size, up to the non-Zip64 4 GiB cap.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.