{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93994 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-93994 is a high-severity authentication bypass vulnerability in Apache MINA SSHD, published on 30 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-93994 and fix it if it is affected.\n\nWhat it is: CVE-2026-93994 is a high-severity authentication bypass vulnerability in Apache MINA SSHD, published on 30 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-93994 in the wild and no public exploit code.\n\nAffected product: Apache MINA SSHD. 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-2026-93994/ (Markdown: https://insights.sbomify.com/CVE-2026-93994/index.md)","id":"CVE-2026-93994","markdown":"https://insights.sbomify.com/CVE-2026-93994/index.md","name":"CVE-2026-93994","record":{"aliases":["DEBIAN-CVE-2026-93994","GHSA-qc4p-9828-mv83","RHSA-2026:71541","UBUNTU-CVE-2026-93994"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Java SSH library","requires_auth":"low_privilege","summary":"Attackers can bypass multi-factor public key authentication by presenting the same key twice in Apache MINA SSHD servers configured for repeated public key checks.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-304","name":"Missing Critical Step in Authentication"}],"description":"Apache MINA SSHD is a Java library for client-side and server-side SSH. SSH servers can be configured to require multi-authentication schemes, for instance two different public keys, not just one. In OpenSSH, this would be done by setting in sshd_config AuthenticationMethods \"publickey,publickey\". Apache MINA SSHD provides an equivalent configuration mechanism.\n\nIn Apache MINA SSHD versions up to 2.19.0 and 3.0.0-M1 to 3.0.0-M5 the server code in component sshd-core does not enforce that the two public keys presented are different. A user can thus successfully authenticate with only one of the two key pairs required by presenting this single key twice. This is a partial authentication bypass.\n\nUsers are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue.","ecosystems":["Red Hat:hummingbird:1"],"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":"Apache MINA SSHD: Repeated-publickey policy bypass on server","id":"CVE-2026-93994","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Apache MINA SSHD: Remote execution of JGit \"archive -o=file.zip\" can write file on the server","id":"CVE-2026-93995"},"packages":[{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.9.16-0.3.hum1"],"introduced":["0"],"last_affected":[],"package":"maven3.9","purl":"pkg:rpm/redhat/maven3.9","source":"RHSA-2026:71541"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.9.16-0.3.hum1"],"introduced":["0"],"last_affected":[],"package":"maven3.9-lib","purl":"pkg:rpm/redhat/maven3.9-lib","source":"RHSA-2026:71541"}],"prev":{"headline":"Mistral Vibe before 2.25.5 Remote Code Execution via git post-checkout","id":"CVE-2026-93993"},"products":["Apache MINA SSHD"],"published":"2026-09-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"2026-09-30","vendors":["Apache Software Foundation"]},"summary":"Attackers can bypass multi-factor public key authentication by presenting the same key twice in Apache MINA SSHD servers configured for repeated public key checks.","url":"https://insights.sbomify.com/CVE-2026-93994/"}