{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-66486 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-66486 is a medium-severity vulnerability in GNU cpio, published on 10 Aug 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-2026-66486 and fix it if it is affected.\n\nWhat it is: CVE-2026-66486 is a medium-severity vulnerability in GNU cpio, published on 10 Aug 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-2026-66486 in the wild and no public exploit code.\n\nAffected product: GNU cpio. 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-2026-66486/ (Markdown: https://insights.sbomify.com/CVE-2026-66486/index.md)","id":"CVE-2026-66486","markdown":"https://insights.sbomify.com/CVE-2026-66486/index.md","name":"CVE-2026-66486","record":{"aliases":["AZL-94689","DEBIAN-CVE-2026-66486","GHSA-p5w5-qcg3-g8gx","OESA-2026-3540","UBUNTU-CVE-2026-66486"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["other"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GNU cpio utility","requires_auth":"none","summary":"Attackers can inject terminal control sequences or forge listing entries via crafted cpio archives, affecting users viewing archive contents.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-116","name":"Improper Encoding or Escaping of Output"}],"description":"GNU cpio is vulnerable to improper encoding or escaping of output in its archive member listing functionality. When listing archive members via cpio -it, member names are printed directly to output without quoting or escaping. An attacker can craft a cpio archive containing member names with embedded newline characters or ANSI escape sequences, causing forged listing entries or terminal control sequence injection when the listing is displayed.\n\nThis issue has been fixed in commit 2ff9600c9ef32e88759843cdbde74c8db5ae9b30","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":"Improper Output Encoding in GNU cpio","id":"CVE-2026-66486","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Joomla Extension - balbooa.com - Payment bypass in Gridbox \u003c 2.20.2","id":"CVE-2026-66488"},"packages":[],"prev":{"headline":"Uncontrolled Memory Allocation in GNU cpio","id":"CVE-2026-66485"},"products":["cpio"],"published":"2026-08-10","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":"2026-08-10","vendors":["GNU"]},"summary":"Attackers can inject terminal control sequences or forge listing entries via crafted cpio archives, affecting users viewing archive contents.","url":"https://insights.sbomify.com/CVE-2026-66486/"}