{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-86344 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-86344 is a high-severity denial of service vulnerability in Red Hat Directory Server 11, published on 1 Oct 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-2026-86344 and fix it if it is affected.\n\nWhat it is: CVE-2026-86344 is a high-severity denial of service vulnerability in Red Hat Directory Server 11, published on 1 Oct 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-2026-86344 in the wild and no public exploit code.\n\nAffected product: Red Hat Directory Server 11. 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-2026-86344/ (Markdown: https://insights.sbomify.com/CVE-2026-86344/index.md)","id":"CVE-2026-86344","markdown":"https://insights.sbomify.com/CVE-2026-86344/index.md","name":"CVE-2026-86344","record":{"aliases":["AZL-107951","DEBIAN-CVE-2026-86344","GHSA-62jf-8m49-534w","UBUNTU-CVE-2026-86344"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"LDAP directory server","requires_auth":"none","summary":"Unauthenticated attackers can exhaust worker threads in 389-ds-base by sending malformed LDAP sequences, causing a denial of service for all clients.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A flaw was found in 389-ds-base. An unauthenticated remote attacker can send a complete LDAP operation followed by the first bytes of an incomplete LDAPMessage on the same connection, causing the server to hand that connection to a second worker thread before the first worker's result is flushed. The second worker blocks until nsslapd-ioblocktimeout while holding the connection mutex, preventing delivery of the completed operation's result. Repeating this across a small number of connections proportional to the configured worker-thread pool size exhausts the entire pool under default configuration, denying service to all clients (anonymous and authenticated, plaintext and TLS) for as long as the attacker maintains the connections.","ecosystems":[],"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":"Denial of service in Red Hat Directory Server 11","id":"CVE-2026-86344","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Auth bypass in Red Hat Directory Server 11","id":"CVE-2026-86345"},"packages":[],"prev":{"headline":"MISP Freetext Feed Preview Improper Authorization Exposes Restricted Event and Feed Information","id":"CVE-2026-86342"},"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":"2026-10-01","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-10-02","vendors":["Red Hat"]},"summary":"Unauthenticated attackers can exhaust worker threads in 389-ds-base by sending malformed LDAP sequences, causing a denial of service for all clients.","url":"https://insights.sbomify.com/CVE-2026-86344/"}