{"answers":{"affected":"It affects 3 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90462 exists.","fix":"Apply the vendor's patch.","what":"CVE-2026-90462 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Linux, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-90462 and fix it if it is affected.\n\nWhat it is: CVE-2026-90462 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Linux, published on 22 Sep 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-2026-90462 exists.\n\nAffected product: Redhat Enterprise Linux. 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-2026-90462/ (Markdown: https://insights.sbomify.com/CVE-2026-90462/index.md)","id":"CVE-2026-90462","markdown":"https://insights.sbomify.com/CVE-2026-90462/index.md","name":"CVE-2026-90462","record":{"aliases":["DEBIAN-CVE-2026-90462","GHSA-58vh-w7mf-682f","UBUNTU-CVE-2026-90462"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Linux identity service","requires_auth":"low_privilege","summary":"A fail-open flaw in SSSD's LDAP ppolicy check allows deleted users to retain access, enabling unauthorized data access and limited modifications.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"sssd","vendor":"fedoraproject"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"openshift_container_platform","vendor":"redhat"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-280","name":"Improper Handling of Insufficient Permissions or Privileges"}],"description":"A flaw was found in SSSD. When configured with the LDAP access provider and `ldap_access_order` including `ppolicy` or `lockout`, a fail-open condition in the LDAP ppolicy access check can occur if a user lookup returns zero results. This can incorrectly return success and cache an allow decision, permitting continued authorization for a deleted or deprovisioned user. A remote attacker with prior valid account context could exploit this to maintain access to information and potentially make limited modifications to resources that should no longer be available.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Sssd: sssd: fail-open in ldap ppolicy access check allows continued authorization","id":"CVE-2026-90462","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:enterprise_linux","products":["redhat:enterprise_linux","redhat:openshift_container_platform"],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Memory corruption in Red Hat Enterprise Linux 10","id":"CVE-2026-90463"},"packages":[],"prev":{"headline":"OpenStack Ironic through 38.0.0 may send a username and password to an unexpected remote host when Image Service is configured for HTTP(S) Basic Authentication.","id":"CVE-2026-90461"},"products":["Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 6","Red Hat Enterprise Linux 7","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 9","Red Hat OpenShift Container Platform 4"],"published":"2026-09-22","related":[{"cvss_score":8.8,"headline":"Other in SSSD","id":"CVE-2022-4254","kev_date_added":null,"published":"2023-02-01"},{"cvss_score":8.8,"headline":"Auth bypass in sssd","id":"CVE-2012-3462","kev_date_added":null,"published":"2019-12-26"},{"cvss_score":6.8,"headline":"Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation","id":"CVE-2026-104048","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":6.8,"headline":"Denial of service in n/a","id":"CVE-2015-5292","kev_date_added":null,"published":"2015-10-29"},{"cvss_score":6.4,"headline":"Sssd: use-after-free crash in sssd' 'sssd_pam' process","id":"CVE-2026-12610","kev_date_added":null,"published":"2026-06-30"},{"cvss_score":6.2,"headline":"Sssd: sssd: denial of service via incomplete identity provider authentication requests","id":"CVE-2026-104046","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":5.5,"headline":"Sssd: sssd: denial of service via memory exhaustion in autofs responder","id":"CVE-2026-104031","kev_date_added":null,"published":"2026-10-06"}],"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":"partial"},"state":"PUBLISHED","updated":"2026-09-22","vendors":["Red Hat"]},"summary":"A fail-open flaw in SSSD's LDAP ppolicy check allows deleted users to retain access, enabling unauthorized data access and limited modifications.","url":"https://insights.sbomify.com/CVE-2026-90462/"}