{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-123535 in the wild and no public exploit code.","exposure":"","fix":"Upgrade to a fixed version.","what":"CVE-2026-123535 is a low-severity vulnerability in tornadoweb tornado, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123535 and fix it if it is affected.\n\nWhat it is: CVE-2026-123535 is a low-severity vulnerability in tornadoweb tornado, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123535 in the wild and no public exploit code.\n\nAffected product: tornadoweb tornado. 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-2026-123535/ (Markdown: https://insights.sbomify.com/CVE-2026-123535/index.md)","id":"CVE-2026-123535","markdown":"https://insights.sbomify.com/CVE-2026-123535/index.md","name":"CVE-2026-123535","record":{"aliases":["AZL-113107","CLEANSTART-2026-ZY98309","DEBIAN-CVE-2026-123535","GHSA-c6v4-qj2h-f748","GHSA-cfc4-jgx9-vvjh","UBUNTU-CVE-2026-123535"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"Tornado before 6.6 does not validate the max_age argument of RequestHandler.set_cookie (also called by set_signed_cookie, set_secure_cookie, and clear_cookie), allowing injection of additional Set-Cookie attributes. When an application passes attacker-influenced input as max_age, an attacker can embed attributes such as Domain, Path, or Secure to widen the cookie's scope to parent paths or other subdomains.","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":"Tornado before 6.6 Cookie Attribute Injection via set_cookie max_age","id":"CVE-2026-123535","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"OpenAM before 16.1.4 SSRF via Federation Configuration Wizard Metadata URLs","id":"CVE-2026-123536"},"nickname":null,"packages":[],"prev":{"headline":"Tornado before 6.6 Path Traversal via static_url() Version Hashing","id":"CVE-2026-123534"},"products":["tornado"],"published":"2026-11-08","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":"2026-11-12","vendors":["tornadoweb"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123535/"}