{"id":"BIT-oauth2-proxy-2026-34454","summary":"OAuth2 Proxy: Session cookie not cleared when rendering sign-in page","details":"OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be shown the sign-in page while the existing session cookie remains valid, meaning the browser session is not actually logged out. On shared workstations or devices, a subsequent user could continue to use the previous user's authenticated session. Deployments that use a dedicated logout/sign-out endpoint to terminate sessions are not affected. This issue is fixed in 7.15.2","aliases":["CVE-2026-34454","GHSA-f24x-5g9q-753f","GO-2026-5341"],"modified":"2026-09-08T08:48:10.756110238Z","published":"2026-04-16T23:45:30.321Z","database_specific":{"severity":"Low","cpes":["cpe:2.3:a:oauth2_proxy_project:oauth2_proxy:*:*:*:*:*:go:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.15.2"},{"type":"ARTICLE","url":"https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-f24x-5g9q-753f"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34454"}],"affected":[{"package":{"name":"oauth2-proxy","ecosystem":"Bitnami","purl":"pkg:bitnami/oauth2-proxy"},"ranges":[{"type":"SEMVER","events":[{"introduced":"7.11.0"},{"fixed":"7.15.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/oauth2-proxy/BIT-oauth2-proxy-2026-34454.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"}]}],"schema_version":"1.9.0"}