{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89035 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-89035 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-89035 is a critical vulnerability in MikroTik RouterOS, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-89035 and fix it if it is affected.\n\nWhat it is: CVE-2026-89035 is a critical vulnerability in MikroTik RouterOS, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-89035 in the wild and no public exploit code.\n\nAffected product: MikroTik RouterOS. 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-2026-89035/ (Markdown: https://insights.sbomify.com/CVE-2026-89035/index.md)","id":"CVE-2026-89035","markdown":"https://insights.sbomify.com/CVE-2026-89035/index.md","name":"CVE-2026-89035","record":{"aliases":["GHSA-j7mx-6943-qw55"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/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":"MikroTik RouterOS through 7.24.5 contains a session token replay vulnerability in the WebFig interface that allows attackers to bypass authentication by replaying captured session tokens across new ECDH sessions. The makeSessionKey function in libucrypto.so generates tokens using fixed salts without incorporating channel-specific or session-specific input, and the user service validates tokens against the login store without verifying channel context, enabling stolen tokens to grant persistent administrative access until the token store is explicitly cleared. This vulnerability extends the impact of CVE-2025-61481, which identified the underlying transport-layer exposure without a corresponding fix.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-27","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-27T12:19:37Z","kind":"github_poc","ref":"https://github.com/mehmet-emir-eroglu/CVE-2026-89035","stars":0,"title":"Offline Python detector for CVE-2026-89035 exposure in MikroTik RouterOS inventories, with CSV/JSON input and auditable reports."}],"tier":"poc_unverified"},"has_fix":null,"headline":"MikroTik RouterOS 7.24.5 WebFig Session Token Replay Authentication Bypass","id":"CVE-2026-89035","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Appwrite \u003c 2.0.0 Argument Injection via providerRootDirectory Parameter","id":"CVE-2026-89036"},"packages":[],"prev":{"headline":"TCH QRing R20_B006 Unauthenticated BLE Access","id":"CVE-2026-89034"},"products":["RouterOS"],"published":"2026-10-21","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-28","vendors":["MikroTik"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-89035/"}