{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93563 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-93563 is a high-severity denial of service vulnerability in Red Hat Fuse 7, published on 18 Sep 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-2026-93563 and fix it if it is affected.\n\nWhat it is: CVE-2026-93563 is a high-severity denial of service vulnerability in Red Hat Fuse 7, published on 18 Sep 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-2026-93563 in the wild and no public exploit code.\n\nAffected product: Red Hat Fuse 7. 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-2026-93563/ (Markdown: https://insights.sbomify.com/CVE-2026-93563/index.md)","id":"CVE-2026-93563","markdown":"https://insights.sbomify.com/CVE-2026-93563/index.md","name":"CVE-2026-93563","record":{"aliases":["DEBIAN-CVE-2026-93563","GHSA-mv3r-x43m-8mr7","UBUNTU-CVE-2026-93563"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Java networking library","requires_auth":"none","summary":"A remote attacker can cause a denial of service by sending unbounded multi-line SMTP responses, exhausting memory in applications using the Netty SMTP codec.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1035","name":null}],"description":"A flaw was found in Netty's `SmtpResponseDecoder` component. A remote attacker, acting as a malicious or man-in-the-middle (MITM) SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory accumulation within the client's Java Virtual Machine (JVM) heap, causing an `OutOfMemoryError` and a denial of service (DoS) due to a process crash.","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":"Denial of service in Red Hat Fuse 7","id":"CVE-2026-93563","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in Red Hat AMQ Broker 7","id":"CVE-2026-93564"},"packages":[],"prev":{"headline":"Io.netty/netty-codec-http: netty: incomplete validation of malformed transfer-encoding allows http request smuggling","id":"CVE-2026-93562"},"products":["Red Hat Fuse 7","Red Hat JBoss Enterprise Application Platform 7","Red Hat Single Sign-On 7","Red Hat build of Apache Camel for Spring Boot 4"],"published":"2026-09-18","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":"partial"},"state":"PUBLISHED","updated":"2026-09-25","vendors":["Red Hat"]},"summary":"A remote attacker can cause a denial of service by sending unbounded multi-line SMTP responses, exhausting memory in applications using the Netty SMTP codec.","url":"https://insights.sbomify.com/CVE-2026-93563/"}