{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-105840 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-105840 is a high-severity path traversal vulnerability in Uwe Ohse lrzsz, published on 6 Oct 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-2026-105840 and fix it if it is affected.\n\nWhat it is: CVE-2026-105840 is a high-severity path traversal vulnerability in Uwe Ohse lrzsz, published on 6 Oct 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-2026-105840 in the wild and no public exploit code.\n\nAffected product: Uwe Ohse lrzsz. 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-2026-105840/ (Markdown: https://insights.sbomify.com/CVE-2026-105840/index.md)","id":"CVE-2026-105840","markdown":"https://insights.sbomify.com/CVE-2026-105840/index.md","name":"CVE-2026-105840","record":{"aliases":["AZL-106667","DEBIAN-CVE-2026-105840","GHSA-3hwf-cvfh-5874","UBUNTU-CVE-2026-105840"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"ZMODEM file transfer utility","requires_auth":"none","summary":"Attackers can overwrite arbitrary files via absolute paths in lrzsz restricted mode unless the pubdir feature is enabled.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"lrzsz before 0.13.0 contains a path traversal vulnerability in the lrz receive utility's restricted mode that allows malicious ZMODEM senders to write files outside the current directory using absolute pathnames. Because checkpath() in src/lrz.c only rejects '../' sequences unless built with --enable-pubdir, attackers can send files named with absolute paths to overwrite any file writable by the receiving user.","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":"lrzsz before 0.13.0 Path Traversal via lrz Restricted Mode checkpath()","id":"CVE-2026-105840","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"lrzsz before 0.13.0 OS Command Injection via lrz Pipe Mode","id":"CVE-2026-105841"},"packages":[],"prev":{"headline":"libmikmod before 3.3.14 Heap Buffer Overflow via OKT Loader OKT_doPBOD","id":"CVE-2026-105839"},"products":["lrzsz"],"published":"2026-10-06","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":"total"},"state":"PUBLISHED","updated":"2026-10-09","vendors":["Uwe Ohse"]},"summary":"Attackers can overwrite arbitrary files via absolute paths in lrzsz restricted mode unless the pubdir feature is enabled.","url":"https://insights.sbomify.com/CVE-2026-105840/"}