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CVE-2026-116137— adm-zip through 0.6.1 Duplicate-Entry Validation Bypass via Canonically Equivalent Names

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.

adm-zip 0.6.1 及以下版本存在重复条目验证绕过漏洞。攻击者可利用规范等价的条目名称（例如 和 ）规避 检查。攻击者可构造恶意 ZIP 压缩包，使得 或 方法仅验证良性内容，而 方法却将恶意内容写入同一路径，从而绕过完整性校验。

CVSS 3.7 · Low

Affected Version Matrix 1

VendorProduct Version RangeStatus
cthackers adm-zip ≤ 0.6.1 affected
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I. Basic Information for CVE-2026-116137

Vulnerability Information
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Vulnerability Title
adm-zip through 0.6.1 Duplicate-Entry Validation Bypass via Canonically Equivalent Names
Source: CVE Program / CVE List V5
Vulnerability Description
adm-zip through 0.6.1 contains a duplicate-entry validation bypass that allows attackers to evade the readEntries() check by using canonically equivalent entry names like './hello.txt' and 'hello.txt'. Attackers can craft ZIP archives where getEntry() or readAsText() validates benign content while extractAllTo() writes malicious content to the same path, bypassing integrity checks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
解释冲突
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-2026-116137

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III. Intelligence Information for CVE-2026-116137

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Patches & Fixes for CVE-2026-116137 (2)

Vendor Advisories for CVE-2026-116137 (1)

Proof of Concept for CVE-2026-116137 (1)

Other References for CVE-2026-116137 (1)

IV. Related Vulnerabilities

Same product: adm-zip
Same vendor: cthackers
Same weakness: CWE-436