CVE-2021-3642 json
Observable Discrepancy in Wildfly Elytron
published 2021-08-05 5 y ago modified 2026-09-10 1 mo ago also GHSA-5499-qjvh-6j7w , EUVD-2022-2493
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
A flaw was found in Wildfly Elytron in versions prior to 1.10.14.Final, prior to 1.15.5.Final and prior to 1.16.1.Final where ScramServer may be susceptible to Timing Attack if enabled. The highest threat of this vulnerability is confidentiality.
Patch / fix
- maven org.wildfly.security:wildfly-elytron 1.10.14, 1.15.5, 1.16.1
- redhat wildfly_elytron 1.10.14, 1.15.5, 1.16.1
- eap7-jsoup jboss enterprise application platform 7.3 1.14.2-1.redhat_00002.1.el8eap
- eap7-wss4j jboss enterprise application platform 7.3 2.2.7-1.redhat_00001.1.el8eap
- eap7-wildfly jboss enterprise application platform 7.3 7.3.10-2.GA_redhat_00003.1.el8eap
- eap7-resteasy jboss enterprise application platform 7.3 3.11.5-1.Final_redhat_00001.1.el8eap
- eap7-undertow jboss enterprise application platform 7.3 2.0.41-1.SP1_redhat_00001.1.el8eap
- eap7-apache-cxf jboss enterprise application platform 7.3 3.3.12-1.redhat_00001.1.el8eap
- eap7-jakarta-el jboss enterprise application platform 7.3 3.0.3-3.redhat_00007.1.el8eap
- eap7-ironjacamar jboss enterprise application platform 7.3 1.5.3-1.Final_redhat_00001.1.el8eap
red hat advisories RHSA-2021:5151RHSA-2021:5150RHSA-2021:5149RHSA-2021:3658RHSA-2021:3656
Exploit prediction
0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:P/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.wildfly.security:wildfly-elytron | <1.10.14 >=1.11.0, <1.15.5 >=1.16.0, <1.16.1 |
1.10.14 1.15.5 1.16.1 |
Affected products
- n/a wildfly-elytron
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
-
bugzilla.redhat.com
/show_bug.cgi?id=1981407
web, issue-tracking, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-3642
advisory
Sources
- CVE List CVE-2021-3642
- GitHub Advisory GHSA-5499-qjvh-6j7w
- NVD CVE-2021-3642
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