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Vulnerability record · CVE-2019-1000012 · published 4 February 2019

CVE-2019-1000012: Hex insufficient verification of data authenticity vulnerability

Hex · Hex

Hex package manager version 0.14.0 through 0.18.2 contains a Signing oracle vulnerability in Package registry verification that can result in Package modifications not detected, allowing code execution. This attack appears to be exploitable via victim fetches packages from malicious/compromised mirror. This vulnerability appears to have been fixed in 0.19.

8.8 CVSS 3.0 High EPSS 0.88% · top 42.6% CWE-345 · Insufficient verification of data authenticity
8.8CVSS 3.0 base score, v2 6.8
0.88%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Hex package manager version 0.14.0 through 0.18.2 contains a Signing oracle vulnerability in Package registry verification that can result in Package modifications not detected, allowing code execution. This attack appears to be exploitable via victim fetches packages from malicious/compromised mirror. This vulnerability appears to have been fixed in 0.19.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/hexpm/hex/pull/646 PatchThird Party Advisory
https://github.com/hexpm/hex/pull/651 PatchThird Party Advisory
https://github.com/hexpm/hex/pull/646 PatchThird Party Advisory
https://github.com/hexpm/hex/pull/651 PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-1000012), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.