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CVE-2026-114105— Adm-zip before 0.6.1 Privilege Escalation via keepOriginalPermission Setuid Bits

Quick assessment

Affected
cthackers adm-zip
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 0.6.1 版本之前的 Adm-zip 存在一个权限分配错误漏洞。当启用 选项时，攻击者可利用该漏洞在解压后的文件上设置 setuid、setgid 或 sticky 位。攻击者可构造 ZIP 文件的外部属性，使其在未经掩码过滤的情况下直接传入 系统调用；若以 root 用户身份解压并随后执行由攻击者控制的程序，这些程序将获得提权后的特权。

CVSS 6.2 · Medium
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I. Basic Information for CVE-2026-114105

Vulnerability Information
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Vulnerability Title
Adm-zip before 0.6.1 Privilege Escalation via keepOriginalPermission Setuid Bits
Source: CVE Program / CVE List V5
Vulnerability Description
Adm-zip before 0.6.1 contains an incorrect permission assignment vulnerability that allows attackers to set setuid, setgid, or sticky bits on extracted files when keepOriginalPermission is enabled. Attackers can craft zip external file attributes that pass unmasked into chmod, letting attacker-controlled executables gain elevated privileges when extracted as root and later run.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
cthackers adm-zip 0 ~ 0.6.1 -

II. Public POCs for CVE-2026-114105

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III. Intelligence Information for CVE-2026-114105

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Other References for CVE-2026-114105 (2)

Same Patch Batch · cthackers · 2026-10-21 · 4 CVEs total

CVE-2026-114102 7.5 HIGH adm-zip before 0.6.1 Denial of Service via inflateAsync Unhandled Error Event
CVE-2026-114104 5.9 MEDIUM adm-zip before 0.6.1 Duplicate ZIP Entry Name Validation Bypass
CVE-2026-114103 5.3 MEDIUM adm-zip 0.6.0 Decompression Bomb Guard Bypass via getDataAsync()

IV. Related Vulnerabilities

Same product: adm-zip
Same vendor: cthackers
Same weakness: CWE-732

V. Comments for CVE-2026-114105

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