{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-1436 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-1436 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-1436 is a high-severity missing authorization vulnerability in Graylog Web Interface, published on 18 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-1436 and fix it if it is affected.\n\nWhat it is: CVE-2026-1436 is a high-severity missing authorization vulnerability in Graylog Web Interface, published on 18 Feb 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-2026-1436 in the wild and no public exploit code.\n\nAffected product: Graylog Web Interface. 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-2026-1436/ (Markdown: https://insights.sbomify.com/CVE-2026-1436/index.md)","id":"CVE-2026-1436","markdown":"https://insights.sbomify.com/CVE-2026-1436/index.md","name":"CVE-2026-1436","record":{"aliases":["GHSA-ff7j-jwgr-hgxp"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Graylog Web Interface","requires_auth":"low_privilege","summary":"Authenticated users can access other users' profiles and sensitive information by modifying the user ID in the URL due to missing authorization checks.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"INCIBE","cpe":[{"product":"graylog","vendor":"graylog"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Improper Access Control (IDOR) in the Graylog API, version 2.2.3, which occurs when modifying the user ID in the URL. An authenticated user can access other user's profiles without proper authorization checks. Exploiting this vulnerability allows valid users of the system to be listed and sensitive third-party information to be accessed, such as names, email addresses, internal identifiers, and last activity. The endpoint 'http://\u003cIP\u003e:12900/users/\u003cmy_user\u003e' does not implement object-level authorization validations.","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":"Improper Access Control (IDOR) vulnerability in Graylog Web Interface","id":"CVE-2026-1436","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Reflected Cross-Site Scripting (XSS) vulnerability in Graylog Web Interface","id":"CVE-2026-1437"},"packages":[],"prev":{"headline":"Incorrect management of session invalidation vulnerability in Graylog Web Interface","id":"CVE-2026-1435"},"products":["Graylog Web Interface"],"published":"2026-02-18","related":[{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2021-37759","kev_date_added":null,"published":"2021-07-31"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2021-37760","kev_date_added":null,"published":"2021-07-31"},{"cvss_score":9.3,"headline":"Incorrect management of session invalidation vulnerability in Graylog Web Interface","id":"CVE-2026-1435","kev_date_added":null,"published":"2026-02-18"},{"cvss_score":8.8,"headline":"Graylog vulnerable to privilege escalation through API tokens","id":"CVE-2025-53106","kev_date_added":null,"published":"2025-07-02"},{"cvss_score":8.8,"headline":"graylog2-server vulnerable to instantiation of arbitrary classes triggered by API request","id":"CVE-2024-24824","kev_date_added":null,"published":"2024-02-07"},{"cvss_score":8.1,"headline":"Improper Certificate Validation in Graylog","id":"CVE-2020-15813","kev_date_added":null,"published":"2020-07-17"},{"cvss_score":8,"headline":"Graylog Allows Session Takeover via Insufficient HTML Sanitization","id":"CVE-2025-46827","kev_date_added":null,"published":"2025-05-07"}],"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":"2026-02-18","vendors":["Graylog"]},"summary":"Authenticated users can access other users' profiles and sensitive information by modifying the user ID in the URL due to missing authorization checks.","url":"https://insights.sbomify.com/CVE-2026-1436/"}