{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-64193 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-64193 is a critical code injection vulnerability in NLNETLABS Net::DNS, published on 20 Jul 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-2026-64193 and fix it if it is affected.\n\nWhat it is: CVE-2026-64193 is a critical code injection vulnerability in NLNETLABS Net::DNS, published on 20 Jul 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-2026-64193 in the wild and no public exploit code.\n\nAffected product: NLNETLABS Net::DNS. 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-2026-64193/ (Markdown: https://insights.sbomify.com/CVE-2026-64193/index.md)","id":"CVE-2026-64193","markdown":"https://insights.sbomify.com/CVE-2026-64193/index.md","name":"CVE-2026-64193","record":{"aliases":["DEBIAN-CVE-2026-64193","GHSA-hwpr-jc4f-7ww3","OESA-2026-3626","OESA-2026-3627","OESA-2026-3871","UBUNTU-CVE-2026-64193"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Perl DNS library","requires_auth":"none","summary":"Remote attackers can execute arbitrary commands via crafted EDNS EXTENDED ERROR packets in the Net::DNS Perl library due to unsafe eval usage.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CPANSec","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-95","name":"Improper Neutralization of Directives in Dynamically Evaluated Code"}],"description":"Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR.\n\nNet::DNS::RR::OPT::EXTENDED_ERROR::_decompose parses the EXTRA-TEXT field of an EDNS EXTENDED-ERROR option (RFC 8914) by tokenising the raw bytes and passing the result to Perl's eval. There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt-\u003eedns-\u003eoption('EXTENDED-ERROR') is called in array context, for example with a payload of {0:`\"\u003ccommand\u003e\"`} in EXTRA-TEXT.","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":"Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR","id":"CVE-2026-64193","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Net::DNS versions through 1.55 for Perl allow Denial of Service via deep DNS compression pointer chains","id":"CVE-2026-64194"},"packages":[],"prev":{"headline":"bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM is uninitialized","id":"CVE-2026-64192"},"products":["Net::DNS"],"published":"2026-07-20","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":"2026-07-21","vendors":["NLNETLABS"]},"summary":"Remote attackers can execute arbitrary commands via crafted EDNS EXTENDED ERROR packets in the Net::DNS Perl library due to unsafe eval usage.","url":"https://insights.sbomify.com/CVE-2026-64193/"}