Gotify: Insufficiently Protected Password Change endpoint

{
  "id": "66158ba4d6cd29cb372d44ccb7726af0ca6ff2cd8c5ff508bad7e03875559e54",
  "url": "https://osv.dev/vulnerability/GHSA-3hcj-9m7p-wwm9",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Gotify: Insufficiently Protected Password Change endpoint",
    "summary": "The password change endpoint (`POST /current/user/password`) in Gotify versions <= 2.9.1 does not require knowledge of the current password. An attacker in possession of a valid client token can set a new password for the affected user. Recovering the account requires administrator intervention or direct database access. ## PoC ```bash # Attacker has obtained a client token # No prior password knowledge required STOLEN_TOKEN=\"Cxxxxxxxxxx\" curl -X POST \"http://gotify-host/current/user/password?token=${STOLEN_TOKEN}\" \\ -H \"Content-Type: application/json\" \\ -d '{\"pass\":\"attacker_controls_this\"}' # Expected response: # HTTP/1.1 200 OK ``` ## Mitigation - Upgrade to Gotify 3.0.0, which introduces step-up authentication: changing the password now requires re-authenticating with the account password, or - Restrict access to the state-changing endpoints under `/user` and `/current/user` to trusted networks.",
    "evidence": "osv:GHSA-3hcj-9m7p-wwm9",
    "products": [
      {
        "name": {
          "value": "github.com/gotify/server/v2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "github.com/gotify/server/v3",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.0.0",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-3hcj-9m7p-wwm9",
      "aliases": [
        "CVE-2026-102603",
        "GHSA-3hcj-9m7p-wwm9",
        "GO-2026-6772"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "2.9.1"
                }
              ]
            }
          ],
          "package": {
            "name": "github.com/gotify/server/v2",
            "purl": "pkg:golang/github.com/gotify/server/v2",
            "ecosystem": "Go"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-3hcj-9m7p-wwm9/GHSA-3hcj-9m7p-wwm9.json"
          }
        },
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.0.0"
                }
              ]
            }
          ],
          "package": {
            "name": "github.com/gotify/server/v3",
            "purl": "pkg:golang/github.com/gotify/server/v3",
            "ecosystem": "Go"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-3hcj-9m7p-wwm9/GHSA-3hcj-9m7p-wwm9.json"
          }
        }
      ],
      "modified": "2026-10-19T21:41:12.735924686Z",
      "provider": "osv",
      "references": [
        "https://github.com/gotify/server/security/advisories/GHSA-3hcj-9m7p-wwm9",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-102603",
        "https://github.com/gotify/server/pull/952",
        "https://github.com/gotify/server/commit/a8744482c668e07a61798573ec8e17bd3f6009f9",
        "https://github.com/gotify/server",
        "https://github.com/gotify/server/releases/tag/v3.0.0"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-620"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": "2026-10-13T15:17:30Z",
        "github_reviewed_at": "2026-10-15T20:15:38Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-102603",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 376786,
  "published_at": "2026-10-15T20:15:38+00:00"
}