OESA-2026-3145

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3145

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-3145.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-3145

Upstream

CVE-2026-13221

Published

2026-07-24T11:12:01Z

Modified

2026-08-18T01:21:23.779793205Z

Severity

9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator

Summary

perl security update

Details

Perl 5 is a highly capable, feature-rich programming language with over 30 years of development. Perl 5 runs on over 100 platforms from portables to mainframes and is suitable for both rapid prototyping and large scale development projects.

Security Fix(es):

Perl versions through 5.43.9 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perlstudychunk.

When such branches are combined into a trie, the delta between the first branch and the shared tail is stored in a 16-bit field. A branch count above 65535 overflows the field, and the trie's match decision table is truncated with no warning or error.

A pattern of this shape produces false positive matches (matching strings it should not) and false negative matches (failing to match strings it should). When such a pattern gates an access or filtering decision, the result is wrong.(CVE-2026-13221)

Database specific

{
    "severity": "Critical"
}

References

Affected packages

openEuler:24.03-LTS-SP3 / perl

Package

Name: perl
Purl: pkg:rpm/openEuler/perl&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.38.0-14.oe2403sp3

Ecosystem specific

{
    "noarch": [
        "perl-help-5.38.0-14.oe2403sp3.noarch.rpm"
    ],
    "src": [
        "perl-5.38.0-14.oe2403sp3.src.rpm"
    ],
    "x86_64": [
        "perl-5.38.0-14.oe2403sp3.x86_64.rpm",
        "perl-debuginfo-5.38.0-14.oe2403sp3.x86_64.rpm",
        "perl-debugsource-5.38.0-14.oe2403sp3.x86_64.rpm",
        "perl-devel-5.38.0-14.oe2403sp3.x86_64.rpm",
        "perl-libs-5.38.0-14.oe2403sp3.x86_64.rpm"
    ],
    "aarch64": [
        "perl-5.38.0-14.oe2403sp3.aarch64.rpm",
        "perl-debuginfo-5.38.0-14.oe2403sp3.aarch64.rpm",
        "perl-debugsource-5.38.0-14.oe2403sp3.aarch64.rpm",
        "perl-devel-5.38.0-14.oe2403sp3.aarch64.rpm",
        "perl-libs-5.38.0-14.oe2403sp3.aarch64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-3145.json"