{"id":"UBUNTU-CVE-2026-25727","details":"time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned rather than exhausting the stack.","modified":"2026-05-20T16:12:25.729779965Z","published":"2026-02-06T20:16:00Z","upstream":["CVE-2026-25727"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-25727"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-25727"},{"type":"REPORT","url":"https://rustsec.org/advisories/RUSTSEC-2026-0009.html"},{"type":"REPORT","url":"https://github.com/advisories/GHSA-r6v5-fh4h-64xc"},{"type":"REPORT","url":"https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05"},{"type":"REPORT","url":"https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee"},{"type":"REPORT","url":"https://github.com/time-rs/time/releases/tag/v0.3.47"},{"type":"REPORT","url":"https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc"}],"affected":[{"package":{"name":"rust-time","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/rust-time?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.42-1"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-time+rustc-serialize-dev","binary_version":"0.1.42-1"},{"binary_version":"0.1.42-1","binary_name":"librust-time-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25727.json"}},{"package":{"name":"rust-time","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/rust-time?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.42-1","0.3.5-2","0.3.5-3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.3.5-3","binary_name":"librust-time-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25727.json"}},{"package":{"name":"rust-time","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/rust-time?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.23-2","0.3.31-1","0.3.31-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.3.31-1ubuntu0.1","binary_name":"librust-time-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25727.json"}},{"package":{"name":"rust-time","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/rust-time?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.37-1","0.3.39-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.3.39-1","binary_name":"librust-time-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25727.json"}},{"package":{"name":"rust-time","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/rust-time?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.39-1","0.3.44-1","0.3.47-1"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-time-dev","binary_version":"0.3.47-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25727.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}