Description
Eclipse Jetty's `SessionAuthentication` retains authentication credentials in a serializable object. When the credentials contain a plaintext password and the authenticated session is persisted to a session data store, the password may consequently be written to persistent storage in plaintext.
An attacker with sufficient privileges to read the persisted session data may obtain the plaintext passwords of authenticated users.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Eclipse Foundation | org.eclipse.jetty:jetty-security | 9.4.0 – ≤ 9.4.64, 10.0.0 – ≤ 10.0.32, 11.0.0 – ≤ 11.0.32, 12.0.0 – ≤ 12.0.38, 12.1.0 – ≤ 12.1.12 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jetty12 | 12.0.39-1 | — |
| Debian 14 | jetty9 | No fix yet | — |
| Debian 13 | jetty9 +1 | No fix yet | — |
| Debian 12 | jetty9 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | jetty9 +1 | No fix yet | — |
| Ubuntu 26.04 LTS | jetty9 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | jetty9 | No fix yet | — |
| Ubuntu 22.04 LTS | jetty9 | No fix yet | — |
| Ubuntu 20.04 LTS | jetty9 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | jetty9 | No fix yet | — |
| Ubuntu 16.04 LTS | jetty9 | No fix yet | — |
Advisories 1
- WID-SEC-2026-3992 Eclipse Jetty: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 5, 2026