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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2026-19864

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-19864
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 01:58 UTC · Revision 1

Source evidence

CVE-2026-19864

core-osv · Original source

Published 15 Oct 2026, 09:41 UTC

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.

osv:CVE-2026-19864
Complete source record
{
  "id": "3dcc5577c673592c1f89c1127fa616ef8f5e89d95e08872a4e0e32cd55735e33",
  "url": "https://osv.dev/vulnerability/CVE-2026-19864",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-19864",
    "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 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.",
    "evidence": "osv:CVE-2026-19864",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-19864",
      "aliases": [
        "CVE-2026-19864",
        "GHSA-q6wx-j9wr-fj7f"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jetty/jetty.project",
              "type": "GIT",
              "events": [
                {
                  "introduced": "28100e8da711e44c0722ed10bd413ae862497539"
                },
                {
                  "last_affected": "bdf87d35991b6459dec358c6012412e329f110b3"
                },
                {
                  "introduced": "c8372b65bd15404de1444d68902c0455a3a69b64"
                },
                {
                  "last_affected": "99a51624fd3b9f5f387fce44b628abf0b491f432"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "12.0.0"
                      },
                      {
                        "last_affected": "12.0.38"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "12.1.0"
                      },
                      {
                        "last_affected": "12.1.12"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "jetty-12.0.38",
            "jetty-12.1.12",
            "jetty-12.0.37",
            "jetty-12.1.5",
            "jetty-12.0.31",
            "jetty-12.1.4",
            "jetty-12.0.30",
            "jetty-12.1.2",
            "jetty-12.0.23",
            "jetty-12.1.0.beta1",
            "jetty-12.0.22",
            "jetty-12.0.19",
            "jetty-12.0.15",
            "jetty-12.0.14",
            "jetty-12.0.6",
            "jetty-12.0.5",
            "jetty-12.0.0x"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19864.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.437376019Z",
      "provider": "osv",
      "references": [
        "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/229",
        "https://repo.maven.apache.org/maven2/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19864.json",
        "https://github.com/jetty/jetty.project/security/advisories/GHSA-q6wx-j9wr-fj7f",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-19864"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-312"
        ],
        "cna_assigner": "eclipse",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.4.0"
                  },
                  {
                    "last_affected": "9.4.64"
                  },
                  {
                    "introduced": "10.0.0"
                  },
                  {
                    "last_affected": "10.0.32"
                  },
                  {
                    "introduced": "11.0.0"
                  },
                  {
                    "last_affected": "11.0.32"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19864.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-19864",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499516,
  "published_at": "2026-10-15T09:41:25.133+00:00"
}