{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-11859 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-11859 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-11859 is a low-severity cross-site scripting vulnerability in Thinkst Applied Research Canarytokens, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-11859 and fix it if it is affected.\n\nWhat it is: CVE-2026-11859 is a low-severity cross-site scripting vulnerability in Thinkst Applied Research Canarytokens, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-11859 in the wild and no public exploit code.\n\nAffected product: Thinkst Applied Research Canarytokens. 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-2026-11859/ (Markdown: https://insights.sbomify.com/CVE-2026-11859/index.md)","id":"CVE-2026-11859","markdown":"https://insights.sbomify.com/CVE-2026-11859/index.md","name":"CVE-2026-11859","record":{"aliases":["GHSA-55jf-cqr9-r7p4"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Canarytokens service","requires_auth":"none","summary":"Attackers can inject HTML into Canarytoken notification emails, enabling XSS in email clients that render HTML content.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ThinkstAppliedResearch","cpe":[],"cvss":{"score":2,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P/AU:N/RE:L/U:Green","version":"4.0"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"An HTML injection vulnerability in the \"fetch links\" email sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation, Cross-Site Scripting (XSS) in emails clients that render HTML emails.\n\nThis issue affects Canarytokens: from Docker tag sha-c0f3cf142 before sha-08c3f93d, from Git commit c0f3cf142 before 08c3f93d.","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":"HTML injection in the Canarytoken links email","id":"CVE-2026-11859","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Insecure Deserialisation via Plaintext HTTP leading to Remote Code Execution in Quick.CMS","id":"CVE-2026-11860"},"packages":[],"prev":{"headline":"Missing authorization in Quanos SCHEMA ST4 Client Update Service allows arbitrary file overwrite as SYSTEM","id":"CVE-2026-11858"},"products":["Canarytokens"],"published":"2026-06-10","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":"2026-06-10","vendors":["Thinkst Applied Research"]},"summary":"Attackers can inject HTML into Canarytoken notification emails, enabling XSS in email clients that render HTML content.","url":"https://insights.sbomify.com/CVE-2026-11859/"}