{"id":"CVE-2026-87768","aliases":["EUVD-2026-113902","GHSA-4rjq-xvjh-92j2"],"status":"published","title":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds","description":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds.\n\n_normalize_leap_seconds crosses day boundaries one day at a time, so add(seconds =\u003e $n) on an object with a non-floating time zone takes about |$n|/86400 iterations, and nothing limits $n. The XS implementation and the pure-Perl fallback both have the loop.\n\nAn attacker who controls the number of seconds added can keep the process busy for as long as they choose.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00424,"percentile":0.36968,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-407"],"published":"2026-10-30T12:25:21Z","modified":"2026-11-06T16:37:51Z","references":[{"url":"https://metacpan.org/release/JDEGUEST/DateTime-Lite-v0.8.1/changes","tags":["release-notes","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/10/30/10","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87768","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4rjq-xvjh-92j2"},{"url":"https://cpan.org/modules","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87768.json","tags":["advisory"]},{"url":"https://gitlab.com/deguest/DateTime-Lite","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-87768","title":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds","description":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds.\n\n_normalize_leap_seconds crosses day boundaries one day at a time, so add(seconds =\u003e $n) on an object with a non-floating time zone takes about |$n|/86400 iterations, and nothing limits $n. The XS implementation and the pure-Perl fallback both have the loop.\n\nAn attacker who controls the number of seconds added can keep the process busy for as long as they choose.","status":"published","published":"2026-10-30T12:25:21.054Z","modified":"2026-11-06T16:37:51.953Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-407"],"updated_at":"2026-11-06T17:28:53.938268Z"}],"euvd":[{"id":"EUVD-2026-113902","description":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds.\n\n_normalize_leap_seconds crosses day boundaries one day at a time, so add(seconds =\u003e $n) on an object with a non-floating time zone takes about |$n|/86400 iterations, and nothing limits $n. The XS implementation and the pure-Perl fallback both have the loop.\n\nAn attacker who controls the number of seconds added can keep the process busy for as long as they choose.","status":"published","published":"2026-10-30T12:25:21Z","modified":"2026-11-06T16:37:51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-06T18:05:41.778974Z"}],"ghsa":[{"id":"GHSA-4rjq-xvjh-92j2","title":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding...","description":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds.\n\n_normalize_leap_seconds crosses day boundaries one day at a time, so add(seconds =\u003e $n) on an object with a non-floating time zone takes about |$n|/86400 iterations, and nothing limits $n. The XS implementation and the pure-Perl fallback both have the loop.\n\nAn attacker who controls the number of seconds added can keep the process busy for as long as they choose.","status":"published","published":"2026-10-30T15:34:31Z","modified":"2026-11-06T18:35:01Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-407"],"updated_at":"2026-11-06T19:01:26.771329Z"}],"nvd":[{"id":"CVE-2026-87768","description":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds.\n\n_normalize_leap_seconds crosses day boundaries one day at a time, so add(seconds =\u003e $n) on an object with a non-floating time zone takes about |$n|/86400 iterations, and nothing limits $n. The XS implementation and the pure-Perl fallback both have the loop.\n\nAn attacker who controls the number of seconds added can keep the process busy for as long as they choose.","status":"published","published":"2026-10-30T13:20:15.91Z","modified":"2026-11-06T17:20:02.94Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-407"],"updated_at":"2026-11-06T20:01:15.785017Z"}],"osv":[{"id":"CVE-2026-87768","title":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds","description":"DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds.\n\n_normalize_leap_seconds crosses day boundaries one day at a time, so add(seconds =\u003e $n) on an object with a non-floating time zone takes about |$n|/86400 iterations, and nothing limits $n. The XS implementation and the pure-Perl fallback both have the loop.\n\nAn attacker who controls the number of seconds added can keep the process busy for as long as they choose.","status":"published","published":"2026-10-30T12:25:21.054Z","modified":"2026-11-07T02:48:34.854326312Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-407"],"updated_at":"2026-11-07T03:08:11.522761Z"}]}}