Vulnerability Details CVE-2026-23940
Uncontrolled Resource Consumption vulnerability in hexpm hexpm/hexpm allows Excessive Allocation.
Publishing an oversized package can cause Hex.pm to run out of memory while extracting the uploaded package tarball. This can terminate the affected application instance and result in a denial of service for package publishing and potentially other package-processing functionality.
This issue affects hex.pm: before 2026-03-10.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 36.9%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-23940
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cpe:2.3:a:hex:hexpm:2014-09-29
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cpe:2.3:a:hex:hexpm:2025-10-01
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cpe:2.3:a:hex:hexpm:2025-10-17
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cpe:2.3:a:hex:hexpm:2026-01-19
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cpe:2.3:a:hex:hexpm:2026-02-26
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cpe:2.3:a:hex:hexpm:2026-03-05