Apache TomEE: Username enumeration and timing side channel in JAAS login modules
Summary
| CVE | CVE-2026-86532 |
|---|---|
| State | PUBLISHED |
| Assigner | apache |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-10 15:17:30 UTC |
| Updated | 2026-11-10 15:17:30 UTC |
| Description | 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. |
Risk And Classification
Problem Types: CWE-203 | CWE-203 CWE-203 Observable Discrepancy
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Apache Software Foundation | Apache TomEE | affected 4.0.0-beta-1 4.7.5 semver | Not specified |
| CNA | Apache Software Foundation | Apache TomEE | affected 7.0.0-M1 10.0.0-M1 semver | Not specified |
| CNA | Apache Software Foundation | Apache TomEE | affected 10.0.0-M1 10.3.0 semver | Not specified |
| CNA | Apache Software Foundation | Apache TomEE | affected 11.0.0-M1 11.0.0-M2 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| lists.apache.org/thread.html/oohwxbp6xx8dgl18xy1p1y6qjg59dgoh | [email protected] | lists.apache.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: The Apache Software Foundation (en)
CNA: Claude Security (en)
CNA: Markus Jung (en)
There are currently no legacy QID mappings associated with this CVE.