{"id":"UBUNTU-CVE-2026-21619","details":"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.","modified":"2026-03-25T19:46:41.519465Z","published":"2026-02-27T18:16:00Z","upstream":["CVE-2026-21619"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-21619"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-21619"}],"affected":[{"package":{"name":"rebar3","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/rebar3@3.18.0-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.18.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.18.0-1","binary_name":"rebar3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-21619.json"}},{"package":{"name":"rebar3","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/rebar3@3.19.0-1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.19.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.19.0-1","binary_name":"rebar3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-21619.json"}},{"package":{"name":"rebar3","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/rebar3@3.24.0-1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.23.0-3","3.24.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.24.0-1","binary_name":"rebar3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-21619.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","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_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}