{"id":"DEBIAN-CVE-2026-49762","details":"Uncontrolled Resource Consumption vulnerability in the Elixir standard library's Version module allows an attacker who controls a version string to cause a denial of service through CPU and memory exhaustion.  The version parser converts numeric version components (major, minor, patch and numeric pre-release/build identifiers) to integers without bounding their length. A single large all-digit component therefore forces a super-linear, non-yielding base-10 to arbitrary-precision integer conversion (String.to_integer/1, i.e. :erlang.binary_to_integer/1) that pins a BEAM scheduler, and a larger component raises an uncaught SystemLimitError that crashes the calling process. A single moderately sized string (around one megabyte) is enough; no authentication is required.  This is reachable from the public entry points Version.parse/1, Version.parse!/1, Version.match?/3, Version.compare/2, and Version.parse_requirement/1, which applications routinely call on untrusted input such as HTTP parameters, dependency-manifest fields, and package metadata.  This vulnerability is associated with program files lib/version.ex and program routines 'Elixir.Version.Parser':parse_digits/2.  This issue affects Elixir: from 1.5.0 before 1.20.1.","modified":"2026-09-14T17:03:44.441069979Z","published":"2026-06-09T14:16:44.317Z","upstream":["CVE-2026-49762"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-49762"}],"affected":[{"package":{"name":"elixir-lang","ecosystem":"Debian:12","purl":"pkg:deb/debian/elixir-lang?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.14.0.dfsg-2","1.17.3.dfsg-1","1.17.3.dfsg-2","1.18.1.dfsg-1","1.18.1.dfsg-1.1","1.18.3.dfsg-1","1.18.3.dfsg-2","1.19.5.dfsg-1","1.19.5.dfsg-2","1.20.0.dfsg-1","1.20.1.dfsg-1","1.20.1.dfsg-2","1.20.4+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49762.json"}},{"package":{"name":"elixir-lang","ecosystem":"Debian:13","purl":"pkg:deb/debian/elixir-lang?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.18.3.dfsg-1","1.18.3.dfsg-2","1.19.5.dfsg-1","1.19.5.dfsg-2","1.20.0.dfsg-1","1.20.1.dfsg-1","1.20.1.dfsg-2","1.20.4+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49762.json"}},{"package":{"name":"elixir-lang","ecosystem":"Debian:14","purl":"pkg:deb/debian/elixir-lang?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.1.dfsg-1"}]}],"versions":["1.18.3.dfsg-1","1.18.3.dfsg-2","1.19.5.dfsg-1","1.19.5.dfsg-2","1.20.0.dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49762.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}