Vulnerability in Apache Shenyu
CVE-2022-26650
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.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.027 · change: +0.000
Affected products
- Apache Shenyu — versions 2.4.0, 2.4.1, 2.4.2
- Apache Software Foundation Shenyu (Incubating) — versions unspecified
Weakness classification (CWE)
References
- lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673 (Mailing List, Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/05/17/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-26650?
- CVE-2022-26650 is a high-severity vulnerability in Apache Shenyu, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2022-05-17.
- How severe is CVE-2022-26650?
- High severity. CVSS v3 base score is 7.5 out of 10.