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CVE-2026-32148— Lockfile checksums not verified in Hex allows dependency integrity bypass

Quick assessment

Affected
hexpm hex
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.

Hex是Hex开源的一个Erlang生态系统的包管理工具。 hex 0.16.0版本至2.4.2之前版本存在安全漏洞，该漏洞源于数据真实性验证不足，可能导致依赖完整性绕过。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.26% · P15

Affected Version Matrix 2

VendorProduct Version RangeStatus
hexpm hex 0.16.0< 2.4.2 affected
e01576f28c64af9fae6eb17e2dad30f6efcb303c< d7528c8199a1144511508bf3a6460026a5a14c8e affected
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I. Basic Information for CVE-2026-32148

Vulnerability Information
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Vulnerability Title
Lockfile checksums not verified in Hex allows dependency integrity bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows dependency integrity bypass via unverified lockfile checksums. Hex stores checksums for dependencies in the mix.lock file to ensure reproducible and integrity-checked builds. However, Hex.RemoteConverger.verify_resolved/2 never executes checksum verification because the lock data returned by Hex.Utils.lock/1 uses string-based dependency names, while the verification logic compares against atom-based names. This type mismatch causes the verification code path to be silently skipped. Checksums are still validated when packages are initially downloaded from the registry, but mismatches between the lockfile and resolved dependencies are not detected. An attacker who can influence cached packages (e.g., via local cache poisoning or a compromised registry) can provide modified dependency contents that will be accepted without detection. The mix.lock file is silently rewritten with the checksum values from the registry, erasing evidence of tampering. This issue affects hex: from 0.16.0 before 2.4.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
完整性检查值验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Hex 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hex是Hex开源的一个Erlang生态系统的包管理工具。 hex 0.16.0版本至2.4.2之前版本存在安全漏洞，该漏洞源于数据真实性验证不足，可能导致依赖完整性绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
hexpm hex 0.16.0 ~ 2.4.2 cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*
hexpm hex e01576f28c64af9fae6eb17e2dad30f6efcb303c ~ d7528c8199a1144511508bf3a6460026a5a14c8e cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-32148

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-32148

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Patches & Fixes for CVE-2026-32148 (1)

Vendor Advisories for CVE-2026-32148 (2)

Other References for CVE-2026-32148 (1)

IV. Related Vulnerabilities

Same vendor: hexpm
Same weakness: CWE-354

V. Comments for CVE-2026-32148

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