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CVE-2021-3642 Wildfly Elytron

Affected softwareWildfly Elytron
Severity5.3 Medium CVSS 3.1 2 scores
Fixed in1.10.14, 1.15.5, 1.16.1
WeaknessCWE-203
Published5 Aug 2021
Updated17 Jun 2026

Description

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 5 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 0.85% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory
Finding This CVE is MEDIUM severity, is not listed in CISA KEV or VulnCheck KEV, has no public exploit or PoC in any indexed source, carries no CISA Vulnrichment finding of a demonstrated exploit, and is not part of an Oracle Critical Patch Update. None of the signals that would put it in front of an engineer is present, and the volume of CVEs below that bar is too great to take one at a time, so no rule is written for it. This is a decision about what we act on, not a finding that the CVE is harmless — a patch may well be derivable, and a low-severity defect can still be one link in a longer chain.
Candidate fix https://bugzilla.redhat.com/show_bug.cgi?id=1981407 : a Red Hat bug: the triage, which links onward to the fix

CVSS

5.3 MEDIUM v3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N NVD Primary published
CVSS 2.0 3.5 none AV:N/AC:M/Au:S/C:P/I:N/A:N NVD Primary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.wildfly.security:wildfly-elytron 0 1.10.14 unbounded
org.wildfly.security:wildfly-elytron 1.11.0 1.15.5 unbounded
org.wildfly.security:wildfly-elytron 1.16.0 1.16.1 unbounded

Products and versions

14 products, 18 version entries
SourceVendorProductSchemeAffected versions
osv org.wildfly.security wildfly-elytron generic < 1.10.14 · ≥ 1.11.0 and < 1.15.5 · ≥ 1.16.0 and < 1.16.1
nvd quarkus quarkus generic ≤ 2.1.4
nvd redhat build of quarkus generic any version
nvd redhat codeready studio generic 12.0
nvd redhat data grid generic 8.0
nvd redhat descision manager generic 7.0
nvd redhat integration camel k generic any version
nvd redhat integration camel quarkus generic any version
nvd redhat jboss enterprise application platform generic 7.0.0
nvd redhat jboss enterprise application platform expansion pack generic any version
nvd redhat jboss fuse generic 7.0.0
nvd redhat openshift application runtimes generic any version
nvd redhat process automation generic 7.0
nvd redhat wildfly elytron generic < 1.10.14 · ≥ 1.11.0 and < 1.15.5 · ≥ 1.16.0 and < 1.16.1

References

URLTags
https://bugzilla.redhat.com/show_bug.cgi?id=1981407 bugzilla

Timeline

Published2021-08-05By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.