CVE-2026-113811: high-severity vulnerability in Algorithm-UrataniTakeda
Algorithm::UrataniTakeda versions from 0.1.5 before 0.1.7 for Perl allow memory exhaustion via a never-cleared failure shift cache in search
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.6%
Algorithm::UrataniTakeda versions from 0.1.5 before 0.1.7 for Perl allow memory exhaustion via a never-cleared failure shift cache in search.
The failure shift is cached for each pair of trie state and text character in a field of the matcher object, and nothing clears it. A character not seen before at a given state adds an entry that lasts for the life of the matcher.
An attacker who can submit text with many distinct characters to a long-lived matcher can grow its memory with each search.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Algorithm-UrataniTakedaReferences
https://github.com/robrwo/perl-Algorithm-UrataniTakeda/commit/79897ef86a5a9bb6bc381718fe977c8150bc3d5b.patchhttps://github.com/robrwo/perl-Algorithm-UrataniTakeda/security/advisories/GHSA-9vcx-647w-pr3hhttps://metacpan.org/release/RRWO/Algorithm-UrataniTakeda-v0.1.7/changeshttp://www.openwall.com/lists/oss-security/2026/10/21/27