{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43640 exists.","fix":"No fix has been published for CVE-2026-43640 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-43640 is a high-severity authentication bypass vulnerability in bitwarden server, published on 11 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-43640 and fix it if it is affected.\n\nWhat it is: CVE-2026-43640 is a high-severity authentication bypass vulnerability in bitwarden server, published on 11 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43640 exists.\n\nAffected product: bitwarden server. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-43640/ (Markdown: https://insights.sbomify.com/CVE-2026-43640/index.md)","id":"CVE-2026-43640","markdown":"https://insights.sbomify.com/CVE-2026-43640/index.md","name":"CVE-2026-43640","record":{"aliases":["GHSA-6736-x63f-c628"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Bitwarden Server","requires_auth":"low_privilege","summary":"Authenticated users with SCIM privileges can bypass master-password re-authentication to retrieve or rotate organization SCIM API keys.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"server","vendor":"bitwarden"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-303","name":"Incorrect Implementation of Authentication Algorithm"}],"description":"Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Bitwarden Server \u003c 2026.4.1 Authentication Bypass via SCIM API Key","id":"CVE-2026-43640","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Softaculous Virtualizor OS Command Injection via Billing Module Handler","id":"CVE-2026-43641"},"packages":[],"prev":{"headline":"Bitwarden Server \u003c 2026.4.0 Missing Authorization via Provider Clients","id":"CVE-2026-43639"},"products":["server"],"published":"2026-05-11","related":[{"cvss_score":9.3,"headline":"Bitwarden Server \u003c 2026.6.0 Authorization Bypass via Admin Auth Request","id":"CVE-2026-60104","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":8.9,"headline":"Bitwarden Server \u003c 2026.4.0 Missing Authorization via Provider Clients","id":"CVE-2026-43639","kev_date_added":null,"published":"2026-05-11"},{"cvss_score":7.5,"headline":"Server-side request forgery in n/a","id":"CVE-2020-15879","kev_date_added":null,"published":"2020-07-21"},{"cvss_score":7.5,"headline":"Weak cryptography in n/a","id":"CVE-2019-19766","kev_date_added":null,"published":"2019-12-12"},{"cvss_score":7.1,"headline":"Bitwarden Server \u003c 2026.5.0 Privilege Escalation via Bulk User Remove Endpoint","id":"CVE-2026-57520","kev_date_added":null,"published":"2026-06-25"},{"cvss_score":5.3,"headline":"Bitwarden Server \u003c 2026.5.0 Broken Access Control via PreviewInvoiceController","id":"CVE-2026-57521","kev_date_added":null,"published":"2026-06-25"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["bitwarden"]},"summary":"Authenticated users with SCIM privileges can bypass master-password re-authentication to retrieve or rotate organization SCIM API keys.","url":"https://insights.sbomify.com/CVE-2026-43640/"}