{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-11793 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-11793 is a medium-severity memory corruption vulnerability in Red Hat Directory Server 11, published on 9 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-11793 and fix it if it is affected.\n\nWhat it is: CVE-2026-11793 is a medium-severity memory corruption vulnerability in Red Hat Directory Server 11, published on 9 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-11793 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-2026-11793/ (Markdown: https://insights.sbomify.com/CVE-2026-11793/index.md)","id":"CVE-2026-11793","markdown":"https://insights.sbomify.com/CVE-2026-11793/index.md","name":"CVE-2026-11793","record":{"aliases":["DEBIAN-CVE-2026-11793","GHSA-v6v5-66j3-444p","UBUNTU-CVE-2026-11793"],"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":"high_privilege","summary":"An attacker with Directory Manager privileges can crash the LDAP server via a stack buffer overflow in algorithm ID parsing.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"389_directory_server","vendor":"redhat"}],"cvss":{"score":4.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only.","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":"389-ds-base: 389-ds-base: stack buffer overflow in checkprefix() algorithm id parsing","id":"CVE-2026-11793","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Advanced Form Integration \u003c 2.1.1 - Unauthenticated Privilege Escalation via Breakdance Form Role Mapping","id":"CVE-2026-11794"},"packages":[],"prev":{"headline":"389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)","id":"CVE-2026-11792"},"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":"2026-06-09","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":"2026-08-07","vendors":["Red Hat"]},"summary":"An attacker with Directory Manager privileges can crash the LDAP server via a stack buffer overflow in algorithm ID parsing.","url":"https://insights.sbomify.com/CVE-2026-11793/"}