{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-43859 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-43859 is a low-severity vulnerability in mutt, published on 4 May 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-2026-43859 and fix it if it is affected.\n\nWhat it is: CVE-2026-43859 is a low-severity vulnerability in mutt, published on 4 May 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-2026-43859 in the wild and no public exploit code.\n\nAffected product: mutt. 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-2026-43859/ (Markdown: https://insights.sbomify.com/CVE-2026-43859/index.md)","id":"CVE-2026-43859","markdown":"https://insights.sbomify.com/CVE-2026-43859/index.md","name":"CVE-2026-43859","record":{"aliases":["AZL-85587","DEBIAN-CVE-2026-43859","GHSA-rhvq-8hmp-hm8h","UBUNTU-CVE-2026-43859"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["other"],"network_reachable":"yes","non_default_config":false,"product_category":"Mutt email client","requires_auth":"none","summary":"Mutt email client uses incorrect string copying for IMAP CRAM-MD5 authentication, potentially causing functional issues or minor security weaknesses.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":3.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-158","name":"Improper Neutralization of Null Byte or NUL Character"}],"description":"mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5 digest.","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":"Other in mutt","id":"CVE-2026-43859","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Other in mutt","id":"CVE-2026-43860"},"packages":[],"prev":{"headline":"A stack-based buffer overflow vulnerability could allow a remote authenticated attacker to achieve arbitrary code execution.","id":"CVE-2026-43858"},"products":["mutt"],"published":"2026-05-04","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":"2026-05-04","vendors":["mutt"]},"summary":"Mutt email client uses incorrect string copying for IMAP CRAM-MD5 authentication, potentially causing functional issues or minor security weaknesses.","url":"https://insights.sbomify.com/CVE-2026-43859/"}