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CVE-2026-21619

CVE-2026-21619 · Unsafe Deserialization of Erlang Terms in hex_core

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 2.0 · Low · EPSS 0.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • hex_core

    Versions
    • ≥ eb327f8edfe45507351e38cc0805aa12fa647f0b, < cdf726095bca85ad2549d146df1e831ae93c2b13: Affected (git)

    No fix published

  • hex_core

    Versions
    • ≥ 0.1.0, < 0.12.1: Affected (semver)

    Update to 0.12.1

  • hex

    Versions
    • ≥ 314546ac432229518714cc8e3336e916b9da6305, < 636739f3322514e9303ca335fb630696fcbb3c95: Affected (git)

    Update to 636739f3322514e9303ca335fb630696fcbb3c95

  • hex

    Versions
    • ≥ 2.3.0, < 2.3.2: Affected (semver)

    Update to 2.3.2

  • rebar3

    Versions
    • ≥ 209c02ec57c2cc3207ee0174c3af3675b8dc8f79, < 1d4478f527e373de0b225951e53115450e0d9b9d: Affected (git)

    No fix published

  • rebar3

    Versions
    • ≥ 3.9.1, < 3.27.0: Affected (semver)

    Update to 3.27.0

  • erlang-hex Debian:13

    Versions
    • 2.0.6-2
    • 2.4.2-1
    • 2.4.2-2
    • 2.5.1-1
    • 2.5.1-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • erlang-hex Debian:14

    Versions
    • 2.0.6-2
    • 2.4.2-1
    Affected ranges
    • ECOSYSTEM: < 2.4.2-2

    Update to 2.4.2-2

  • rebar3 Debian:12

    Versions
    • 3.19.0-1
    • 3.23.0-1
    • 3.23.0-2
    • 3.23.0-3
    • 3.24.0-1
    • 3.25.1-1
    • 3.26.0-1
    • 3.27.0-1
    • 3.27.0-2
    • 3.27.0-3
    • 3.27.0-4
    • 3.27.0-5
    • 3.27.0-6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rebar3 Debian:13

    Versions
    • 3.24.0-1
    • 3.25.1-1
    • 3.26.0-1
    • 3.27.0-1
    • 3.27.0-2
    • 3.27.0-3
    • 3.27.0-4
    • 3.27.0-5
    • 3.27.0-6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rebar3 Debian:14

    Versions
    • 3.24.0-1
    • 3.25.1-1
    • 3.26.0-1
    Affected ranges
    • ECOSYSTEM: < 3.27.0-1

    Update to 3.27.0-1

  • rebar3 Ubuntu:22.04:LTS

    Versions
    • 3.18.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rebar3 Ubuntu:24.04:LTS

    Versions
    • 3.19.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rebar3 Ubuntu:25.10

    Versions
    • 3.23.0-3
    • 3.24.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rebar3 Ubuntu:26.10

    Versions
    • 3.26.0-1
    • 3.27.0-3
    • 3.27.0-4
    • 3.27.0-6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rebar3 Ubuntu:26.04:LTS

    Versions
    • 3.24.0-1
    • 3.25.1-1
    • 3.26.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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