CVE-2026-21619Disclosure(erlang / hex)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch erlang hex systems immediately

Recommended action window: Monitor and triage in normal cycle

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.

1.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-400CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • hex
  • hex_core
  • rebar3

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-02-27); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
hexhex_corerebar3

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-02-27: 1Mentions · 2026-03-07: 1Patch / Workaround · 2026-03-07: 1Technical Details · 2026-02-27: 102-2703-07
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
By indicator
Classification over time
DateTotalLabels
2026-02-271
Disclosure1
2026-03-071
Patch1
Full discourse2 posts
  • Ferramentas Linux@Cezar_H_Linux
    Patch

    The CVE-2026-21619 advisory for hex_core is a must-patch for anyone on #CentOS 8/#Fedora running Erlang/Elixir tooling. Read more: 👉 https://tinyurl.com/ypdfc3p5 #Security https://t.co/HGmpIjJHuc

    Post summary

    The advisory emphasizes that hex_core on CentOS 8/Fedora, especially for Erlang/Elixir users, requires immediate patching.

    0000047
    1.3K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-21619 Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules), hexpm hex (mix_hex_api modules), erlang rebar3… https://www.cve.org/CVERecord?id=CVE-2026-21619

    Post summary

    A brief mention of CVE-2026-21619 highlighting uncontrolled resource consumption and deserialization flaws in hexpm modules, with a link to the CVE record.

    00000101
    56.6K followersView on X
CPE platform detail3 entries

3 of 3 entries

PartVendorProductVersionTarget SWTarget HW
Apperlangrebar3---
Apphexhex---
Apphexhex_core---

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