Medium severity6.5NVD Advisory· Published Mar 13, 2026· Updated Sep 8, 2026
CVE-2026-23940
CVE-2026-23940
Description
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.
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Affected products
2Patches
Vulnerability mechanics
References
5- github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01nvdPatch
- github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcrnvdMitigationVendor Advisory
- cna.erlef.org/cves/CVE-2026-23940.htmlnvd
- github.com/hexpm/hexpm/commit/82911daf5f8fb2ab44f298e3ba22b90bc1ae3746nvd
- osv.dev/vulnerability/EEF-CVE-2026-23940nvd
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