CVE-2026-45384

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/rikyoz/bit7z/releases/tag/v4.0.12
https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h
https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h

Configurations

No configuration.

History

23 Jul 2026, 09:10

Type	Values Removed	Values Added
Summary		(es) bit7z es una biblioteca estática de C++ multiplataforma que permite la compresión/extracción de archivos comprimidos. Antes de la versión 4.0.12, existe una vulnerabilidad de sobrescritura arbitraria de archivos mediante un ataque de enlace simbólico en archivos temporales predecibles durante la actualización del archivo. Este problema ha sido parcheado en la versión 4.0.12.

11 Jun 2026, 14:16

Type	Values Removed	Values Added
References	~~() https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h -~~	() https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h -

10 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-10 22:16

Updated : 2026-07-23 09:10

NVD link : CVE-2026-45384

Mitre link : CVE-2026-45384

CVE.ORG link : CVE-2026-45384

JSON object : View

Products Affected

No product.

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

CWE-377

Insecure Temporary File

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