CVE-2026-21619

Published February 27th, 2026

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CVSS v3

7.5

HIGH

CVSS v2

N/A

Affected

PROJECTS

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.

hexpm/hex

Package manager for the Erlang ecosystem.

GitHub

1.07K

hexpm/hex_core

Reference implementation of Hex specifications.

GitHub

105

erlang/rebar3

Erlang build tool that makes it easy to compile and test Erlang applications and releases.

GitHub

1.81K