{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2026-16835 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-16835 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-16835 is a critical authentication bypass vulnerability in IBM Power Systems Firmware, published on 19 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-16835 and fix it if it is affected.\n\nWhat it is: CVE-2026-16835 is a critical authentication bypass vulnerability in IBM Power Systems Firmware, published on 19 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-16835 in the wild and no public exploit code.\n\nAffected product: IBM Power Systems Firmware. 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-2026-16835/ (Markdown: https://insights.sbomify.com/CVE-2026-16835/index.md)","id":"CVE-2026-16835","markdown":"https://insights.sbomify.com/CVE-2026-16835/index.md","name":"CVE-2026-16835","record":{"aliases":["GHSA-2mjm-m8vh-843x"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["privilege_escalation","data_read","data_modify","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"IBM Power Systems Firmware","requires_auth":"none","summary":"An unauthenticated attacker on the management network can bypass authentication to perform administrative operations on IBM Power Systems, compromising confidentiality, integrity, and availability.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"power_system_e1080_\\(9080-hex\\)_firmware","vendor":"ibm"},{"product":"power_system_e1180_\\(9080-heu\\)_firmware","vendor":"ibm"},{"product":"power_system_e950_\\(9040-mr9\\)_firmware","vendor":"ibm"},{"product":"power_system_e980_\\(9080-m9s\\)_firmware","vendor":"ibm"},{"product":"power_system_h922_\\(9223-22s\\)_firmware","vendor":"ibm"},{"product":"power_system_h924_\\(9223-42s\\)_firmware","vendor":"ibm"},{"product":"power_system_s914_\\(9009-41g\\)_firmware","vendor":"ibm"},{"product":"power_system_s922_\\(9009-22g\\)_firmware","vendor":"ibm"},{"product":"power_system_s924_\\(9009-42g\\)_firmware","vendor":"ibm"}],"cvss":{"score":9.6,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP management network protocol. An unauthenticated attacker on the management network can bypass authentication and perform any administrative operation on the managed system, including control of partition power state, configuration, and console access across all hosted partitions, resulting in a confidentiality, integrity, and availability impact to the managed system.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Power System Improper Certificate Validation","id":"CVE-2026-16835","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Vulnerabilities in IBM AIX and PowerVM VIOS","id":"CVE-2026-16836"},"packages":[],"prev":{"headline":"Vulnerabilities in IBM AIX and PowerVM VIOS","id":"CVE-2026-16834"},"products":["Power Systems Firmware"],"published":"2026-08-19","related":[{"cvss_score":9.6,"headline":"Power System Buffer Overflow","id":"CVE-2026-16687","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":8.4,"headline":"Power System Buffer Overflow","id":"CVE-2026-16832","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":8.3,"headline":"Power System Cross-Site Request Forgery (CSRF)","id":"CVE-2026-18848","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":7.6,"headline":"Power System Out-of-bounds Read","id":"CVE-2026-16828","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":7.1,"headline":"This Power System update is being released to address","id":"CVE-2026-93306","kev_date_added":null,"published":"2026-09-25"},{"cvss_score":6.9,"headline":"Power System Missing Authorization","id":"CVE-2026-16938","kev_date_added":null,"published":"2026-08-19"}],"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":"total"},"state":"PUBLISHED","updated":"2026-08-22","vendors":["IBM"]},"summary":"An unauthenticated attacker on the management network can bypass authentication to perform administrative operations on IBM Power Systems, compromising confidentiality, integrity, and availability.","url":"https://insights.sbomify.com/CVE-2026-16835/"}