All errata/sisyphus/ALT-PU-2026-12619-1
ALT-PU-2026-12619-1

Package update 7-zip in branch sisyphus

Version26.02-alt1
Task#422809
Published2026-06-26
Max severityHIGH
Severity:

Closed issues (4)

BDU:2026-08978
LOW3.3

Уязвимость архиватора 7-Zip, связанная с нарушением механизма защиты данных, позволяющая нарушителю обойти существующие механизмы безопасности и проводить спуфинг-атаки

Published: 2026-06-30
CVSS 3.xLOW 3.3
CVSS:3.x/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:P/A:N
References
BDU:2026-10443
HIGH7.0

Уязвимость функции MixCoder_Code() компонента XZ Decoder архиватора 7-Zip, позволяющая нарушителю выполнить произвольный код

Published: 2026-07-23
CVSS 3.xHIGH 7.0
CVSS:3.x/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0MEDIUM 6.2
CVSS:2.0/AV:L/AC:H/Au:N/C:C/I:C/A:C
References
CVE-2026-14266
HIGH7.8

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30169.

Published: 2026-07-29Modified: 2026-08-07
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
CVE-2026-58052
MEDIUM4.8

7-Zip for Windows through 26.01 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an archive-supplied Zone.Identifier stream matches the exact name 'Zone.Identifier' while a RAR5 STM record named ':Zone.Identifier:$DATA' is not matched and NTFS canonicalizes it to the same stream, overwriting the propagated Internet-zone marker with ZoneId=0. A second STM record named '::$DATA' overwrites the extracted file's default data stream, letting an attacker defeat SmartScreen/MotW warnings and spoof file content.

Published: 2026-06-27Modified: 2026-08-07
CVSS 3.xLOW 3.3
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS 4.0MEDIUM 4.8
CVSS:4.0/CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References