{"affected":[{"package":{"ecosystem":"Hex","name":"hex_core","purl":"pkg:hex/hex_core"},"ranges":[{"events":[{"introduced":"0.1.0"},{"fixed":"0.12.1"}],"type":"SEMVER"}],"versions":["0.1.0","0.1.1","0.2.0","0.2.1","0.3.0","0.4.0","0.5.0","0.5.1","0.6.0","0.6.1","0.6.2","0.6.3","0.6.4","0.6.5","0.6.6","0.6.7","0.6.8","0.6.9","0.6.10","0.7.0","0.7.1","0.8.0","0.8.1","0.8.2","0.8.3","0.8.4","0.9.0","0.10.0","0.10.1","0.10.2","0.10.3","0.11.0","0.12.0"]},{"ranges":[{"events":[{"introduced":"eb327f8edfe45507351e38cc0805aa12fa647f0b"},{"fixed":"cdf726095bca85ad2549d146df1e831ae93c2b13"}],"repo":"https://github.com/hexpm/hex_core","type":"GIT"}]},{"ranges":[{"events":[{"introduced":"314546ac432229518714cc8e3336e916b9da6305"},{"fixed":"636739f3322514e9303ca335fb630696fcbb3c95"}],"repo":"https://github.com/hexpm/hex","type":"GIT"}]},{"ranges":[{"events":[{"introduced":"209c02ec57c2cc3207ee0174c3af3675b8dc8f79"},{"fixed":"1d4478f527e373de0b225951e53115450e0d9b9d"}],"repo":"https://github.com/erlang/rebar3","type":"GIT"}]}],"aliases":["GHSA-hx9w-f2w9-9g96","CVE-2026-21619"],"credits":[{"name":"Michael Lubas / Paraxial.ia","type":"FINDER"},{"name":"Jonatan Männchen / EEF","type":"REMEDIATION_DEVELOPER"},{"name":"Eric Meadows-Jönsson / Hex.pm","type":"REMEDIATION_REVIEWER"}],"database_specific":{"capec_ids":["CAPEC-586","CAPEC-130"],"cpe_ids":["cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*","cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*","cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*"],"cwe_ids":["CWE-400","CWE-502"]},"details":"## Summary\n\nUncontrolled 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.\n\nThis 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.","id":"EEF-CVE-2026-21619","modified":"2026-04-06T16:44:11.526Z","published":"2026-02-27T17:57:11.513Z","references":[{"type":"ADVISORY","url":"https://github.com/hexpm/hex_core/security/advisories/GHSA-hx9w-f2w9-9g96"},{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-21619.html"},{"type":"FIX","url":"https://github.com/hexpm/hex_core/commit/cdf726095bca85ad2549d146df1e831ae93c2b13"},{"type":"FIX","url":"https://github.com/hexpm/hex/commit/636739f3322514e9303ca335fb630696fcbb3c95"},{"type":"FIX","url":"https://github.com/erlang/rebar3/commit/1d4478f527e373de0b225951e53115450e0d9b9d"},{"type":"PACKAGE","url":"https://hex.pm/packages/hex_core"}],"related":[],"schema_version":"1.7.3","severity":[{"score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"}],"summary":"Unsafe Deserialization of Erlang Terms in hex_core","upstream":[]}