---
title: "CVE-2026-105668: Hexpm hex - Protection Mechanism Failure"
description: "Hexpm hex 2.5.0 to < 2.5.2 contains a protection mechanism failure caused by improper cooldown bypass logic in package release handling, letting package owners or attackers who compromise owners bypass release-age cooldown, exploit requires package ownership or account compromise."
url: https://panop.io/threat-heartbeat/CVE-2026-105668/
---

# CVE-2026-105668 Hexpm hex - Protection Mechanism Failure

Hexpm hex 2.5.0 to < 2.5.2 contains a protection mechanism failure caused by improper cooldown bypass logic in package release handling, letting package owners or attackers who compromise owners bypass release-age cooldown, exploit requires package ownership or account compromise.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.33% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-105668)

## Details

Type

Protection Mechanism Failure

Impact

Remote Code Execution

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/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

Published

12 October 2026

Updated

15 October 2026

Weakness

[CWE-693](https://cwe.mitre.org/data/definitions/693.html)

## Vendor fix

Upgrade to version 2.5.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-105668](https://nvd.nist.gov/vuln/detail/CVE-2026-105668)
- [https://github.com/hexpm/hex/commit/eed2bdf85320ae9e244629511c03f5f3f8c5d0b5](https://github.com/hexpm/hex/commit/eed2bdf85320ae9e244629511c03f5f3f8c5d0b5)
- [https://github.com/hexpm/hex/security/advisories/GHSA-pqhp-5x9x-69h7](https://github.com/hexpm/hex/security/advisories/GHSA-pqhp-5x9x-69h7)
- [https://osv.dev/vulnerability/EEF-CVE-2026-105668](https://osv.dev/vulnerability/EEF-CVE-2026-105668)
- [https://cna.erlef.org/cves/CVE-2026-105668.html](https://cna.erlef.org/cves/CVE-2026-105668.html)
- [https://github.com/hexpm/hex/commit/1b6fddfeadd98ed26a143f60356efade0494e2ae](https://github.com/hexpm/hex/commit/1b6fddfeadd98ed26a143f60356efade0494e2ae)
- [https://github.com/hexpm/hex/commit/b4e665d46be8a5f81e8cbbe4c3a67058a19cf133](https://github.com/hexpm/hex/commit/b4e665d46be8a5f81e8cbbe4c3a67058a19cf133)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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