CVE-2022-26650

Name: CVE-2022-26650
Creator: NVD / NIST
Published: 2022-05-17T08:15:06.423+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.43%

Last modified Jun 17, 2026

CVE-2022-26650 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.43% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.43%

82.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apache	Shenyu	2.4.0
Apache	Shenyu	2.4.1
Apache	Shenyu	2.4.2

References

http://www.openwall.com/lists/oss-security/2022/05/17/3Mailing List, Patch, Third Party Advisory
https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673Mailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/05/17/3Mailing List, Patch, Third Party Advisory
https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673Mailing List, Vendor Advisory

Timeline

Published: May 17, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26650?

How severe is CVE-2022-26650?

CVE-2022-26650 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.43% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26650?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-26650?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST