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Fencer Intel
low —

CVE-2026-86532 json

Apache TomEE: Username enumeration and timing side channel in JAAS login modules

published yesterday modified yesterday also EUVD-2026-121213

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

The bundled JAAS login modules leak whether a username exists and compare credentials in a non-constant-time manner. A remote unauthenticated attacker can enumerate valid accounts and may infer credential material through timing analysis. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.

Patch / fix

  • maven org.apache.tomee:openejb-core 10.0.0-M1, 10.3.0, 11.0.0-M2
  • Apache Software Foundation Apache TomEE 10.0.0-M1, 10.3.0, 11.0.0-M2

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Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-11).

Affected packages

ecosystem package affected fixed in
maven org.apache.openejb:openejb-core
>=4.0.0-beta-1, <=4.7.5
 no fix listed
maven org.apache.tomee:openejb-core
>=7.0.0-M1, <10.0.0-M1
>=10.0.0-M1, <10.3.0
>=11.0.0-M1, <11.0.0-M2
10.0.0-M1
10.3.0
11.0.0-M2

Affected products

  • Apache Software Foundation Apache TomEE

Classification

Weakness

References

Sources

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