{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-71267 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-71267 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-71267 is a critical memory corruption vulnerability in rxi microtar, published on 5 Aug 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-2026-71267 and fix it if it is affected.\n\nWhat it is: CVE-2026-71267 is a critical memory corruption vulnerability in rxi microtar, published on 5 Aug 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-2026-71267 in the wild and no public exploit code.\n\nAffected product: rxi microtar. 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-2026-71267/ (Markdown: https://insights.sbomify.com/CVE-2026-71267/index.md)","id":"CVE-2026-71267","markdown":"https://insights.sbomify.com/CVE-2026-71267/index.md","name":"CVE-2026-71267","record":{"aliases":["GHSA-3h9h-4m9g-9m4r"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"microtar library","requires_auth":"none","summary":"A stack buffer overflow in microtar allows attackers to execute arbitrary code or cause denial of service via crafted file names.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TuranSec","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"microtar's mtar_write_file_header and mtar_write_dir_header functions (src/microtar.c) copy a caller-supplied entry name into the 100-byte field of a stack-allocated mtar_header_t via strcpy(h.name, name), with no check that strlen(name) is less than 100 before the copy.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"microtar Stack Buffer Overflow in mtar_write_file_header() and mtar_write_dir_header()","id":"CVE-2026-71267","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"OpenPLC Runtime v3 Path Traversal in Structured Text FILE Directive Leading to Arbitrary File Write","id":"CVE-2026-71268"},"packages":[],"prev":{"headline":"tinyobjloader-c Stack Buffer Overflow in MTL Material File Line Parsing","id":"CVE-2026-71266"},"products":["microtar"],"published":"2026-08-05","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":"total"},"state":"PUBLISHED","updated":"2026-08-10","vendors":["rxi"]},"summary":"A stack buffer overflow in microtar allows attackers to execute arbitrary code or cause denial of service via crafted file names.","url":"https://insights.sbomify.com/CVE-2026-71267/"}