CVE-2022-26650
Apache ShenYu (incubating) Regular expression denial of service
- Published
- Updated
- Reserved
- Assigned by
- apache
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.
Timeline
ID reserved
By apache
- 2 months later
· 2 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Apache Software Foundation · Apache ShenYu (incubating)
- affected unspecified – < 2.4.3
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.shenyu:shenyuGHSA-cw56-j3fm-7w57 (opens in a new tab)
- Mavenorg.apache.shenyu:shenyu-bootstrapGHSA-cw56-j3fm-7w57 (opens in a new tab)
What to do
Workaround: Upgrade to Apache ShenYu (incubating) 2.4.3 or apply patch https://github.com/apache/incubator-shenyu/pull/2975.
References (2)
- https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673 (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20220517 CVE-2022-26650: Apache ShenYu (incubating) Regular expression denial of service (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-cw56-j3fm-7w57 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-26650)Record last updated .