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Vulnerability record · CVE-2022-26650 · published 17 May 2022

CVE-2022-26650: Apache shenyu inefficient regular expression (redos) vulnerability

Apache · Shenyu

In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.

7.5 CVSS 3.1 High EPSS 2.6% · top 15.1% CWE-1333 · Inefficient regular expression (ReDoS)
7.5CVSS 3.1 base score, v2 5.0
2.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2022/05/17/3 Mailing ListPatchThird Party Advisory
https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673 Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2022/05/17/3 Mailing ListPatchThird Party Advisory
https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673 Mailing ListVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-26650), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.