CVE-2026-21619

7.5 HIGH
Published: February 27, 2026 Modified: April 06, 2026
View on NVD

Description

Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules), hexpm hex (mix_hex_api modules), erlang rebar3 (r3_hex_api modules) allows Object Injection, Excessive Allocation. This vulnerability is associated with program files src/hex_api.erl, src/mix_hex_api.erl, apps/rebar/src/vendored/r3_hex_api.erl and program routines hex_core:request/4, mix_hex_api:request/4, r3_hex_api:request/4. This issue affects hex_core: from 0.1.0 before 0.12.1; hex: from 2.3.0 before 2.3.2; rebar3: from 3.9.1 before 3.27.0.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://cna.erlef.org/cves/CVE-2026-21619.html
Source: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
https://github.com/hexpm/hex_core/security/advisories/GHSA-hx9w-f2w9-9g96
Source: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Mitigation Vendor Advisory
https://osv.dev/vulnerability/EEF-CVE-2026-21619
Source: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.1%
18th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

erlang hex