PT-2026-53084 · Undefined · Undefined

Published 2026-06-28 · Updated 2026-06-28 · CVE-2026-58052

NVD

CVSS v3.1

3.3

Low

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

7-Zip for Windows through 26.02 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.

Exploit

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

CVE-2026-58052

Affected Products

Undefined

References · 4

• 🔥 https://github.com/bikini/exploitarium/tree/main/7zip-rar5-motw-chain-poc · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-58052 · Security Note
• https://github.com/ip7z/7zip · Note
• https://vulncheck.com/advisories/7-zip-mark-of-the-web-bypass-via-rar5-alternate-data-stream-name-collision · Note