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CVE-2026-34743

XZ Utils: Buffer overflow in lzma_index_append() PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
tukaani-project / xzaffected < 5.8.3

CWE

CWE-122

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.