{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-102702 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-102702 is a high-severity vulnerability in Xen, published on 13 Oct 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-2026-102702 and fix it if it is affected.\n\nWhat it is: CVE-2026-102702 is a high-severity vulnerability in Xen, published on 13 Oct 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-2026-102702 in the wild and no public exploit code.\n\nAffected product: Xen. 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-2026-102702/ (Markdown: https://insights.sbomify.com/CVE-2026-102702/index.md)","id":"CVE-2026-102702","markdown":"https://insights.sbomify.com/CVE-2026-102702/index.md","name":"CVE-2026-102702","record":{"aliases":["DEBIAN-CVE-2026-102702","GHSA-p4h6-6vf5-jwcw","UBUNTU-CVE-2026-102702"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_modify","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Xen hypervisor","requires_auth":"none","summary":"A guest can corrupt read-only granted memory or crash the hypervisor via GNTTABOP_cache_flush due to missing restrictions and integer underflow.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"[This CNA information record relates to multiple CVEs; the\ntext explains which aspects/vulnerabilities correspond to which CVE.]\n\n1) XSA-437 (CVE-2023-34321) addressed issues with overflows in\n   calculations involved in guests flushing caches through\n   GNTTABOP_cache_flush.  Unfortunately the fix there introduced a\n   calculation which may underflow, resulting in a loop which would - at\n   least on 64-bit Arm - take excessively long, and which would likely\n   eventually crash the hypervisor.\n\n   This is CVE-2026-102699.\n\n2) GNTTABOP_cache_flush may be issued on memory mapped from another\n   domain using the grant table interface.  However there was no\n   restriction to disallow the use of invalidate-without-clean against\n   read-only grant mappings, which may corrupt the granted memory.\n\n   This is CVE-2026-102702.","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":"Arm: multiple issues with GNTTABOP_cache_flush","id":"CVE-2026-102702","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in ThreadX","id":"CVE-2026-102709"},"packages":[],"prev":{"headline":"gnttab: cache-flush handling may cause page reference leak","id":"CVE-2026-102700"},"products":["Xen"],"published":"2026-10-13","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-20","vendors":["Xen"]},"summary":"A guest can corrupt read-only granted memory or crash the hypervisor via GNTTABOP_cache_flush due to missing restrictions and integer underflow.","url":"https://insights.sbomify.com/CVE-2026-102702/"}