{"id":"CVE-2022-26650","aliases":["GHSA-cw56-j3fm-7w57"],"url":"https://o3.security/vulnerability/CVE-2022-26650","summary":"Apache ShenYu (incubating) Regular expression denial of service","details":"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.","published":"2022-05-17T08:05:10Z","modified":"2026-08-27T03:30:19.424419230Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.shenyu:shenyu","fixedVersion":"2.4.3"},{"ecosystem":"Maven","name":"org.apache.shenyu:shenyu-bootstrap","fixedVersion":"2.4.3"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/26xxx/CVE-2022-26650.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-26650"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2022/05/17/3"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T03:30:19.424419230Z"}}