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CVE-2026-34743
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-04-02T19:21:33.187 · Last modified 2026-06-17T10:39:32.747

Summary

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.

Affected products

tukaani — xz

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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.