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VulnerabilityPublished

CVE-2026-86532: The bundled JAAS login modules leak whether a username exists and compare credentials in a

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Authoritative record:CVE-2026-86532· High

Not known to be exploited · fixed in 11.0.0-M2 : patch Apache TomEE soon.

Data as of 10 Nov 2026, 17:18 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 11.0.0-M2, 10.3.0, 10.0.0-M1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade Apache TomEE and org.apache.tomee/openejb-core to 11.0.0-M2, 10.3.0 or 10.0.0-M1.

Affected software

ProductAffectedFixed in
Apache TomEEorg.apache.openejb:openejb-coreAffected
  • >=4.0.0-beta-1 <=4.7.5
Fixed in–
Apache TomEEorg.apache.tomee:openejb-coreAffected
  • >=11.0.0-M1 <11.0.0-M2
Fixed in
  • 11.0.0-M2
Apache TomEEorg.apache.tomee:openejb-coreAffected
  • >=10.0.0-M1 <10.3.0
Fixed in
  • 10.3.0
Apache TomEEorg.apache.tomee:openejb-coreAffected
  • >=7.0.0-M1 <10.0.0-M1
Fixed in
  • 10.0.0-M1
Mavenorg.apache.openejb/openejb-corepkg:maven/org.apache.openejb/openejb-coreOther threatsAffected
  • >=4.0.0-beta-1 <=4.7.5
Fixed in–
Mavenorg.apache.tomee/openejb-corepkg:maven/org.apache.tomee/openejb-coreOther threatsAffected
  • >=7.0.0-M1 <10.0.0-M1
  • >=10.0.0-M1 <10.3.0
  • >=11.0.0-M1 <11.0.0-M2
Fixed in
  • 10.0.0-M1
  • 10.3.0
  • 11.0.0-M2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should upgrade to versions 10.3.0 or 11.0.0-M2, which fix the vulnerability. No other mitigation steps are indicated.

Description

The bundled JAAS login modules have a vulnerability that leaks information about whether a username exists and perform credential comparisons in a non-constant-time manner. This allows a remote unauthenticated attacker to enumerate valid accounts and potentially infer credential material through timing analysis. The issue is fixed in versions 10.3.0 and 11.0.0-M2.

References

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