{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-56000 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-56000 is a critical use after free vulnerability in X.org X Server, published on 8 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-56000 and fix it if it is affected.\n\nWhat it is: CVE-2026-56000 is a critical use after free vulnerability in X.org X Server, published on 8 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-56000 in the wild and no public exploit code.\n\nAffected product: X.org X Server. 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-2026-56000/ (Markdown: https://insights.sbomify.com/CVE-2026-56000/index.md)","id":"CVE-2026-56000","markdown":"https://insights.sbomify.com/CVE-2026-56000/index.md","name":"CVE-2026-56000","record":{"aliases":["AZL-92072","AZL-92265","BELL-CVE-2026-56000","DEBIAN-CVE-2026-56000","ECHO-173c-c9ca-77ce","GHSA-4gcc-rqqq-58jp","MINI-vjc5-v4c4-7m8j","ROOT-OS-DEBIAN-11-CVE-2026-56000","ROOT-OS-DEBIAN-12-CVE-2026-56000","UBUNTU-CVE-2026-56000"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"X.Org X server","requires_auth":"low_privilege","summary":"Local attackers with X connections can trigger a heap use-after-free in the X server, potentially leading to code execution or privilege escalation.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"suse","cpe":[{"product":"x_server","vendor":"x.org"},{"product":"xwayland","vendor":"x.org"}],"cvss":{"score":9,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.","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":"xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()","id":"CVE-2026-56000","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"x.org:x_server","products":["x.org:x_server"],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"libXfont2 BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow","id":"CVE-2026-56001"},"packages":[],"prev":{"headline":"xorg-server / xwayland glamor font atlas Heap Buffer Overflow","id":"CVE-2026-55999"},"products":["xorg-x11-server","xwayland"],"published":"2026-07-08","related":[{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2017-10971","kev_date_added":null,"published":"2017-07-06"},{"cvss_score":8.5,"headline":"xorg-server / xwayland glamor font atlas Heap Buffer Overflow","id":"CVE-2026-55999","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":7.8,"headline":"Memory corruption in xorg-x11-server","id":"CVE-2022-2319","kev_date_added":null,"published":"2022-09-01"},{"cvss_score":7.8,"headline":"Memory corruption in xorg-x11-server","id":"CVE-2022-2320","kev_date_added":null,"published":"2022-09-01"},{"cvss_score":7.8,"headline":"Memory corruption in xorg-x11-server","id":"CVE-2020-14360","kev_date_added":null,"published":"2021-01-20"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2019-17624","kev_date_added":null,"published":"2019-10-16"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-08","vendors":["X.Org"]},"summary":"Local attackers with X connections can trigger a heap use-after-free in the X server, potentially leading to code execution or privilege escalation.","url":"https://insights.sbomify.com/CVE-2026-56000/"}