rebar3: Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules...
CVE-2026-21619 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-21619, released February 27, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| erlang-hex · Debian 14 | 2.4.2-2 | DEBIAN-CVE-2026-21619 | Feb 27, 2026 |
| rebar3 · Debian 14 | 3.27.0-1 | DEBIAN-CVE-2026-21619 | Feb 27, 2026 |
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