{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-1435 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-1435 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-1435 is a critical authentication bypass vulnerability in Graylog Web Interface, published on 18 Feb 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-2026-1435 and fix it if it is affected.\n\nWhat it is: CVE-2026-1435 is a critical authentication bypass vulnerability in Graylog Web Interface, published on 18 Feb 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-2026-1435 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-2026-1435/ (Markdown: https://insights.sbomify.com/CVE-2026-1435/index.md)","id":"CVE-2026-1435","markdown":"https://insights.sbomify.com/CVE-2026-1435/index.md","name":"CVE-2026-1435","record":{"aliases":["GHSA-3crm-x896-j73p"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Graylog Web Interface","requires_auth":"none","summary":"Attackers can reuse old session tokens to gain unauthorized access to Graylog accounts due to improper session invalidation.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"INCIBE","cpe":[{"product":"graylog","vendor":"graylog"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"Not properly invalidated session vulnerability in Graylog Web Interface, version 2.2.3, due to incorrect management of session invalidation after new logins. The application generates a new 'sessionId' each time a user authenticates, but does not invalidate previously issued session identifiers, which remain valid even after multiple consecutive logins by the same user. As a result, a stolen or leaked 'sessionId' can continue to be used to authenticate valid requests. Exploiting this vulnerability would allow an attacker with access to the web service/API network (port 9000 or HTTP/S endpoint of the server) to reuse an old session token to gain unauthorized access to the application, interact with the API/web, and compromise the integrity of the affected account.","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":"Incorrect management of session invalidation vulnerability in Graylog Web Interface","id":"CVE-2026-1435","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":"Improper Access Control (IDOR) vulnerability in Graylog Web Interface","id":"CVE-2026-1436"},"packages":[],"prev":{"headline":"Reflected XSS in Omega-PSIR","id":"CVE-2026-1434"},"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":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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-18","vendors":["Graylog"]},"summary":"Attackers can reuse old session tokens to gain unauthorized access to Graylog accounts due to improper session invalidation.","url":"https://insights.sbomify.com/CVE-2026-1435/"}