{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-11774 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-11774 is a high-severity vulnerability in Red Hat Directory Server 11.5 E4S for RHEL 8, published on 11 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-11774 and fix it if it is affected.\n\nWhat it is: CVE-2026-11774 is a high-severity vulnerability in Red Hat Directory Server 11.5 E4S for RHEL 8, published on 11 Jun 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-2026-11774 in the wild and no public exploit code.\n\nAffected product: Red Hat Directory Server 11.5 E4S for RHEL 8. 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-2026-11774/ (Markdown: https://insights.sbomify.com/CVE-2026-11774/index.md)","id":"CVE-2026-11774","markdown":"https://insights.sbomify.com/CVE-2026-11774/index.md","name":"CVE-2026-11774","record":{"aliases":["CLSA-2026-1784639752","DEBIAN-CVE-2026-11774","GHSA-6mrg-rm5v-2c3q","UBUNTU-CVE-2026-11774"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"389 Directory Server","requires_auth":"low_privilege","summary":"Remote attackers with valid SASL credentials can trigger an integer overflow to bypass size limits, causing heap buffer overflow and potential remote code execution.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"An integer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), adding sizeof(uint32_t) to a crafted SASL packet length prefix of 0xFFFFFFFC causes unsigned wraparound to zero, bypassing the nsslapd-maxsasliosize limit and leading to a heap buffer overflow of up to approximately 2 megabytes of attacker-controlled data. After a successful SASL bind with integrity protection (SSF \u003e 0), a remote attacker can cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, enrolled host, or service account can trigger this vulnerability over the network. This flaw is independent of CVE-2025-14905, which patched schema.c only and did not modify sasl_io.c.","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: integer overflow in sasl packet length bypasses size limit leading to heap buffer overflow","id":"CVE-2026-11774","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":19,"next":{"headline":"User Admin Simplifier \u003c= 3.0.0 - Cross-Site Request Forgery","id":"CVE-2026-11775"},"packages":[],"prev":{"headline":"Masteriyo LMS \u003c= 2.2.1 - Missing Authorization to Authenticated (Student+) Arbitrary Course Announcement Modification","id":"CVE-2026-11773"},"products":["Red Hat Directory Server 11.5 E4S for RHEL 8","Red Hat Directory Server 11.7 E4S for RHEL 8","Red Hat Directory Server 11.9 for RHEL 8","Red Hat Directory Server 12","Red Hat Directory Server 12.2 E4S for RHEL 9","Red Hat Directory Server 12.4 E4S for RHEL 9","Red Hat Directory Server 13","Red Hat Directory Server 13.2","Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 10.0 Extended Update Support","Red Hat Enterprise Linux 6","Red Hat Enterprise Linux 7 Extended Lifecycle Support","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support","Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On","Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support","Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On","Red Hat Enterprise Linux 8.8 Telecommunications Update Service","Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions","Red Hat Enterprise Linux 9","Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions","Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions","Red Hat Enterprise Linux 9.6 Extended Update Support"],"published":"2026-06-11","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["Red Hat"]},"summary":"Remote attackers with valid SASL credentials can trigger an integer overflow to bypass size limits, causing heap buffer overflow and potential remote code execution.","url":"https://insights.sbomify.com/CVE-2026-11774/"}