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≥
82911da
<
495f016
affected
every other version:
affected
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 hexpm: before 495f01607d3eae4aed7ad09b2f54f31ec7a7df01; hex.pm: before 2026-03-10.
Weaknesses & attack patterns
Weakness
CWE-400
·
Uncontrolled Resource Consumption
in catalog →
MITRE ↗
Attack patterns
CAPEC-130
·
Excessive Allocation
MITRE ↗
Affected — GitHub / hexpm/hexpm Repository ↗
≥
82911da
<
495f016
affected
every other version:
affected
default status
affected
cpe
cpe:2.3:a:hexpm:hexpm:*:*:*:*:*:*:*:*
Affected — hexpm / hex.pm
<
2026-03-10
affected
every other version:
unaffected
default status
unaffected
Workarounds
- Prevent large package uploads by enforcing upload size limits at the reverse proxy or load balancer level.
References
github.com/hexpm/hexpm ·
GHSA-jp8w-gxf6-8hcr ↗
vendor-advisory
osv.dev ·
EEF-CVE-2026-23940 ↗
related
Credits
Joud Zakharia / zentrust partners GmbH
Finder
Eric Meadows-Jönsson / Hex.pm
Remediation developer
CVSS breakdown
HIGH 7.1
open in calculator →
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N