{"answers":{"affected":"5 open source packages ship an affected version, including parse-server and parse. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-27804 in the wild and no public exploit code.","fix":"Upgrade parse-server to a fixed version for your release line: 8.6.3 or 9.3.1-alpha.4.","what":"CVE-2026-27804 is a critical authentication bypass vulnerability in Parseplatform Parse-Server, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-27804 and fix it if it is affected.\n\nWhat it is: CVE-2026-27804 is a critical authentication bypass vulnerability in Parseplatform Parse-Server, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-27804 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- parse-server (npm): affected all versions; fixed in 8.6.3\n- parse-server (npm): affected all versions; fixed in 8.6.3\n- parse-server (npm): affected from 9.0.0; fixed in 9.3.1-alpha.4\n- parse-server (npm): affected from 9.0.0; fixed in 9.3.1-alpha.4\n- parse (Bitnami): affected all versions; fixed in 8.6.3, 9.3.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-27804/ (Markdown: https://insights.sbomify.com/CVE-2026-27804/index.md)","id":"CVE-2026-27804","markdown":"https://insights.sbomify.com/CVE-2026-27804/index.md","name":"CVE-2026-27804","record":{"aliases":["BIT-parse-2026-27804","GHSA-4q3h-vp4r-prv2"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Parse Server backend","requires_auth":"none","summary":"Unauthenticated attackers can forge Google JWTs to take over accounts in Parse Server deployments with Google auth enabled.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"parse-server","vendor":"parseplatform"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"},{"id":"CWE-327","name":"Use of a Broken or Risky Cryptographic Algorithm"}],"description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.3 and 9.1.1-alpha.4, an unauthenticated attacker can forge a Google authentication token with `alg: \"none\"` to log in as any user linked to a Google account, without knowing their credentials. All deployments with Google authentication enabled are affected. The fix in versions 8.6.3 and 9.1.1-alpha.4 hardcodes the expected `RS256` algorithm instead of trusting the JWT header, and replaces the Google adapter's custom key fetcher with `jwks-rsa` which rejects unknown key IDs. As a workaround, dsable Google authentication until upgrading is possible.","ecosystems":["Bitnami","npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Parse Server: Account takeover via JWT algorithm confusion in Google auth adapter","id":"CVE-2026-27804","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"parseplatform:parse-server","products":["parseplatform:parse-server"],"type":"auth_bypass","year":"2026"},"n_packages":5,"n_references":5,"next":{"headline":"Fleet Affected by Local Privilege Escalation via Tcl Command Injection in Orbit","id":"CVE-2026-27806"},"packages":[{"ecosystem":"Bitnami","fixed":["8.6.3","9.3.1"],"introduced":["0","9.0.0"],"last_affected":[],"package":"parse","purl":"pkg:bitnami/parse","source":"BIT-parse-2026-27804"},{"ecosystem":"npm","fixed":["8.6.3"],"introduced":["0"],"last_affected":[],"package":"parse-server","purl":null,"source":"GHSA-4q3h-vp4r-prv2"},{"ecosystem":"npm","fixed":["8.6.3"],"introduced":["0"],"last_affected":[],"package":"parse-server","purl":"pkg:npm/parse-server","source":"GHSA-4q3h-vp4r-prv2"},{"ecosystem":"npm","fixed":["9.3.1-alpha.4"],"introduced":["9.0.0"],"last_affected":[],"package":"parse-server","purl":null,"source":"GHSA-4q3h-vp4r-prv2"},{"ecosystem":"npm","fixed":["9.3.1-alpha.4"],"introduced":["9.0.0"],"last_affected":[],"package":"parse-server","purl":"pkg:npm/parse-server","source":"GHSA-4q3h-vp4r-prv2"}],"prev":{"headline":"Vaultwarden: Collection Management Operations Allowed Without `manage` Verification for Manager Role","id":"CVE-2026-27803"},"products":["parse-server"],"published":"2026-02-25","related":[{"cvss_score":10,"headline":"Parse Server role escalation and CLP bypass via direct `_Join` table write","id":"CVE-2026-30966","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":10,"headline":"Parse Server literalizeRegexPart SQL Injection","id":"CVE-2024-27298","kev_date_added":null,"published":"2024-03-01"},{"cvss_score":10,"headline":"Command Injection in Parse server","id":"CVE-2022-24760","kev_date_added":null,"published":"2022-03-11"},{"cvss_score":9.9,"headline":"Parse Server session token exfiltration via `redirectClassNameForKey` query parameter","id":"CVE-2026-30965","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":9.8,"headline":"Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution","id":"CVE-2023-36475","kev_date_added":null,"published":"2023-06-28"},{"cvss_score":9.8,"headline":"Parse Server vulnerable to Remote Code Execution via prototype pollution in MongoDB BSON parser","id":"CVE-2022-39396","kev_date_added":null,"published":"2022-11-10"},{"cvss_score":9.3,"headline":"Parse Server: Account takeover via operator injection in authentication data identifier","id":"CVE-2026-32248","kev_date_added":null,"published":"2026-03-12"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-26","vendors":["parse-community"]},"summary":"Unauthenticated attackers can forge Google JWTs to take over accounts in Parse Server deployments with Google auth enabled.","url":"https://insights.sbomify.com/CVE-2026-27804/"}