CVE-2026-113811
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
- State
- Published
- Severity
- 7.5 High
- Published
- Oct 21, 2026
- Updated
- Oct 30, 2026
- Reserved
- Oct 20, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
Algorithm-UrataniTakeda |
|
References
- https://github.com/robrwo/perl-Algorithm-UrataniTakeda/security/advisories/GHSA-9vcx-647w-pr3hvendor-advisory
- https://metacpan.org/release/RRWO/Algorithm-UrataniTakeda-v0.1.7/changesrelease-notes
- https://github.com/robrwo/perl-Algorithm-UrataniTakeda/commit/79897ef86a5a9bb6bc381718fe977c8150bc3d5b.patchpatch
- http://www.openwall.com/lists/oss-security/2026/10/21/27
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