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    <lastBuildDate>Thu, 01 Oct 2026 21:27:55 +0000</lastBuildDate>
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      <title>CVE-2026-21619 — Unsafe Deserialization of Erlang Terms in hex_core</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-21619</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; hexpm hex_core, hexpm hex, erlang rebar3&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; hexpm hex_core, hexpm hex, erlang rebar3&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</content:encoded>
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