{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-14266 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-14266 is a high-severity memory corruption vulnerability in 7-Zip, published on 29 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-14266 and fix it if it is affected.\n\nWhat it is: CVE-2026-14266 is a high-severity memory corruption vulnerability in 7-Zip, published on 29 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-14266 in the wild and no public exploit code.\n\nAffected product: 7-Zip. 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-2026-14266/ (Markdown: https://insights.sbomify.com/CVE-2026-14266/index.md)","id":"CVE-2026-14266","markdown":"https://insights.sbomify.com/CVE-2026-14266/index.md","name":"CVE-2026-14266","record":{"aliases":["DEBIAN-CVE-2026-14266","ECHO-0d1c-e83c-8090","GHSA-836v-xv29-x32v","MINI-4qhf-r3gc-9xrm","SUSE-SU-2026:23317-1","SUSE-SU-2026:3869-1","UBUNTU-CVE-2026-14266","openSUSE-SU-2026:11319-1","openSUSE-SU-2026:21641-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"7-Zip compression library","requires_auth":"none","summary":"Remote attackers can execute arbitrary code by tricking users into opening malicious XZ-compressed files in 7-Zip.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"7-zip","vendor":"7-zip"}],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30169.","ecosystems":["SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP7","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server 15 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP6-LTSS","SUSE:Linux Enterprise Server 16.0","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP6","SUSE:Linux Enterprise Server for SAP applications 16.0","openSUSE:Leap 16.0","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2026-07-18","github_poc":3,"max_poc_stars":4,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-07-22T14:32:34Z","kind":"github_poc","ref":"https://github.com/4minx/CVE-2026-14266","stars":4,"title":"CVE-2026-14266 - XZ Heap Buffer Overflow PoC Generator for 7-Zip"},{"date":"2026-07-25T12:13:30Z","kind":"github_poc","ref":"https://github.com/liyuxuan504-byte/CVE-2026-14266","stars":3,"title":"7-Zip XZ Decoder Heap Buffer Overflow - Full analysis, root cause, PoC, and RCE exploitation roadmap"},{"date":"2026-07-18T01:39:16Z","kind":"github_poc","ref":"https://github.com/ret2bilibili/CVE-2026-14266","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability","id":"CVE-2026-14266","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":15,"n_references":1,"next":{"headline":"IBM DataPower Gateway Buffer Overflow","id":"CVE-2026-14269"},"packages":[{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP5-LTSS","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Server 16.0","fixed":["26.02-160000.1.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%2016.0","source":"SUSE-SU-2026:23317-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP4","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP5","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP6","fixed":["26.02-150400.9.9.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6","source":"SUSE-SU-2026:3869-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","fixed":["26.02-160000.1.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/suse/7zip\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0","source":"SUSE-SU-2026:23317-1"},{"ecosystem":"openSUSE:Leap 16.0","fixed":["26.02-160000.1.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/opensuse/7zip\u0026distro=openSUSE%20Leap%2016.0","source":"openSUSE-SU-2026:21641-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["26.02-1.1"],"introduced":["0"],"last_affected":[],"package":"7zip","purl":"pkg:rpm/opensuse/7zip\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11319-1"}],"prev":{"headline":"RCE via Deserialization in AWS Advanced JDBC Wrapper","id":"CVE-2026-14265"},"products":["7-Zip"],"published":"2026-07-29","related":[{"cvss_score":7,"headline":"7-Zip Mark of the Web Bypass","id":"CVE-2025-0411","kev_date_added":"2025-02-06","published":"2025-01-25"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2008-6536","kev_date_added":null,"published":"2009-03-30"},{"cvss_score":8.8,"headline":"GHSL-2026-140_7-Zip: 7-Zip has a heap buffer overflow via NTFS compressed stream buffer under-allocation","id":"CVE-2026-48095","kev_date_added":null,"published":"2026-06-05"},{"cvss_score":8.8,"headline":"Privilege escalation in n/a","id":"CVE-2018-10172","kev_date_added":null,"published":"2018-04-16"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2016-2335","kev_date_added":null,"published":"2016-06-07"},{"cvss_score":7.8,"headline":"7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability","id":"CVE-2024-11477","kev_date_added":null,"published":"2024-11-22"},{"cvss_score":7.8,"headline":"7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability","id":"CVE-2023-40481","kev_date_added":null,"published":"2024-05-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-30","vendors":["7-Zip"]},"summary":"Remote attackers can execute arbitrary code by tricking users into opening malicious XZ-compressed files in 7-Zip.","url":"https://insights.sbomify.com/CVE-2026-14266/"}