{"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","summary":"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 => $n) on an object with a non-floating time zon…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"adp","cwe":["CWE-407"],"product":"DateTime-Lite","affected":["DateTime-Lite < 0.8.1"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-06T16:37:04.850694Z"},"published":"2026-10-30","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:37:51.953Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-87768","references":[{"url":"https://metacpan.org/release/JDEGUEST/DateTime-Lite-v0.8.1/changes"}],"tags":["cve.org"],"epss":0.00424,"epssPercentile":0.36933,"ingestedAt":"2026-11-05T16:07:30.323Z","slug":"CVE-2026-87768","body":"## Overview\n\nDateTime::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 => $n) on an object with a non-floating time zone takes about |$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.\n\n## Affected\n\n- `DateTime-Lite < 0.8.1`\n\n## Remediation\n\nUpgrade to DateTime-Lite v0.8.1 or later.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":235383,"id":"CVE-2026-87768","ts":1793984316357,"field":"cvss","old":null,"new":"7.5"},{"seq":235382,"id":"CVE-2026-87768","ts":1793984316357,"field":"severity","old":"none","new":"high"}]}