Is CVE-2026-23940 actively exploited?

No active exploitation of CVE-2026-23940 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-23940 be exploited remotely?

Yes. CVE-2026-23940 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-23940?

CVE-2026-23940 has a CVSS score of 7.1 (HIGH).

HOME VULNERABILITIESCVE-2026-23940

HIGH

CVE-2026-23940

CWE-400Published: March 13, 2026· Updated: Mar 16, 2026

7.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-23940 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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/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