---
id: CVE-2026-19864
title: >-
  Eclipse Jetty's `SessionAuthentication` retains authentication credentials in
  a serializable object
summary: >-
  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 c…
severity: medium
cvss: 5.6
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-312
vendor: Eclipse Foundation
product: 'org.eclipse.jetty:jetty-security'
affected:
  - 'org.eclipse.jetty:jetty-security >= 9.4.0 <= 9.4.64'
  - 'org.eclipse.jetty:jetty-security >= 10.0.0 <= 10.0.32'
  - 'org.eclipse.jetty:jetty-security >= 11.0.0 <= 11.0.32'
  - 'org.eclipse.jetty:jetty-security >= 12.0.0 <= 12.0.38'
  - 'org.eclipse.jetty:jetty-security >= 12.1.0 <= 12.1.12'
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T10:17:12.633'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19864'
references:
  - url: >-
      https://github.com/jetty/jetty.project/security/advisories/GHSA-q6wx-j9wr-fj7f
    label: emo@eclipse.org
  - url: 'https://gitlab.eclipse.org/security/cve-assignment/-/work_items/229'
    label: emo@eclipse.org
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-15T09:59:33.283Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.