{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-18651 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18651 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18651 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Linux, published on 3 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-18651 and fix it if it is affected.\n\nWhat it is: CVE-2026-18651 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Linux, published on 3 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-18651 in the wild and no public exploit code.\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-2026-18651/ (Markdown: https://insights.sbomify.com/CVE-2026-18651/index.md)","id":"CVE-2026-18651","markdown":"https://insights.sbomify.com/CVE-2026-18651/index.md","name":"CVE-2026-18651","record":{"aliases":["AZL-94517","DEBIAN-CVE-2026-18651","GHSA-q924-9ph6-5h92","UBUNTU-CVE-2026-18651"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["security_bypass","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Directory Server","requires_auth":"low_privilege","summary":"Attackers with valid credentials for locked accounts can bypass account lockout controls and maintain access due to improper state handling during SASL PLAIN authentication.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"389_directory_server","vendor":"redhat"},{"product":"directory_server","vendor":"redhat"},{"product":"enterprise_linux","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-287","name":"Improper Authentication"}],"description":"A flaw was found in 389 Directory Server. During SASL PLAIN authentication, the server installs connection-level bind credentials before performing the account-lock check. If the account is subsequently found to be locked, the bind is reported as failed to the client, but the already-installed authenticated state on the connection is not reverted. A client that supplies valid credentials for an account that has been administratively locked can continue to use the same connection with that account's privileges, defeating account lock as an access-revocation control.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Auth bypass in Red Hat Directory Server 11","id":"CVE-2026-18651","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:enterprise_linux","products":["redhat:enterprise_linux"],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Velociraptor STACK Type Download Path Bypasses Denied Prefix Check","id":"CVE-2026-18652"},"packages":[],"prev":{"headline":"Missing Authorization Leading to Root Code Execution in HAVELSAN's Liman MYS","id":"CVE-2026-18650"},"products":["Red Hat Directory Server 11","Red Hat Directory Server 12","Red Hat Directory Server 13","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"],"published":"2026-08-03","related":[{"cvss_score":7.5,"headline":"389-ds-base: 389-ds-base: pre-auth ldap filter injection in cleanallruv status check","id":"CVE-2026-11770","kev_date_added":null,"published":"2026-07-31"},{"cvss_score":7.5,"headline":"Memory corruption in Red Hat Directory Server 11.5 E4S for RHEL 8","id":"CVE-2026-15722","kev_date_added":null,"published":"2026-07-31"},{"cvss_score":7.5,"headline":"Denial of service in Red Hat Directory Server 11.5 E4S for RHEL 8","id":"CVE-2026-9064","kev_date_added":null,"published":"2026-05-20"},{"cvss_score":7.5,"headline":"Null dereference in Red Hat Directory Server","id":"CVE-2010-2222","kev_date_added":null,"published":"2019-11-05"},{"cvss_score":6.5,"headline":"389-ds-base: 389-ds-base: content sync plugin unbounded queue growth and race conditions","id":"CVE-2026-11611","kev_date_added":null,"published":"2026-06-08"},{"cvss_score":6.5,"headline":"389-ds-base: unauthenticated user can trigger a dos by sending a specific extended search request","id":"CVE-2024-6237","kev_date_added":null,"published":"2024-07-09"},{"cvss_score":6.5,"headline":"Null dereference in 389-ds-base","id":"CVE-2021-3514","kev_date_added":null,"published":"2021-05-28"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-03","vendors":["Red Hat"]},"summary":"Attackers with valid credentials for locked accounts can bypass account lockout controls and maintain access due to improper state handling during SASL PLAIN authentication.","url":"https://insights.sbomify.com/CVE-2026-18651/"}