Vulnerability · Published Oct 30, 2026 · Assigned by CPANSec

CVE-2026-87768DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds

Unrated

In plain English

A security flaw in DateTime-Lite. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS )–Not rated

Exploit odds (30 days)0.2%top 90.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

DateTime::Lite versions before 0.8.1 for Perl allow CPU exhaustion via a per-day loop when adding seconds. _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. An attacker who controls the number of seconds added can keep the process busy for as long as they choose.

Affected products (as reported)

Vendor	Product	Versions
	DateTime-Lite	0 – before 0.8.1

Weakness: CWE-407

In plain English

Official description

Affected products (as reported)

References