CVE-2026-45384

Description

bit7z is a cross-platform C++ static library that allows the compression/extraction of archive files. Prior to version 4.0.12, there is an arbitrary file overwrite vulnerability via symlink attack on predictable temp files during archive update. This issue has been patched in version 4.0.12.

PUBLISHED Reserved 2026-05-12 | Published 2026-06-10 | Updated 2026-06-10 | Assigner GitHub_M

Problem types

CWE-59: Improper Link Resolution Before File Access ('Link Following')

CWE-377: Insecure Temporary File

Product status

References

github.com/.../bit7z/security/advisories/GHSA-wjch-42rm-q53h

github.com/rikyoz/bit7z/releases/tag/v4.0.12

cve.org (CVE-2026-45384)

nvd.nist.gov (CVE-2026-45384)

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