{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-50056 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-50056 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-50056 is a high-severity vulnerability in Zimbra Collaboration Suite, published on 23 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-50056 and fix it if it is affected.\n\nWhat it is: CVE-2026-50056 is a high-severity vulnerability in Zimbra Collaboration Suite, published on 23 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-50056 in the wild and no public exploit code.\n\nAffected product: Zimbra Collaboration Suite. 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-2026-50056/ (Markdown: https://insights.sbomify.com/CVE-2026-50056/index.md)","id":"CVE-2026-50056","markdown":"https://insights.sbomify.com/CVE-2026-50056/index.md","name":"CVE-2026-50056","record":{"aliases":["GHSA-ww99-8662-82q8"],"analysis":null,"analysis_generated_by":null,"assigner":"rapid7","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-88","name":"Improper Neutralization of Argument Delimiters in a Command"}],"description":"A local privilege escalation vulnerability in the zmmailboxdmgr launcher of Zimbra Collaboration Suite (ZCS) allows the Unix zimbra account to execute arbitrary commands as root. The passwordless sudo interface accepts JVM arguments that are not adequately restricted. An attacker can postpone Jetty's privilege drop, register an OnOutOfMemoryError command and force heap exhaustion during startup, causing the command to execute while the JVM still runs as root. Exploitation requires local command execution as zimbra on a mailbox server and interrupts mailboxd during the malicious restart. ZCS 10.1.16 and 10.1.21 are affected.","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":"Zimbra Collaboration Suite Local Privilege Escalation via zmmailboxdmgr JVM Argument Injection","id":"CVE-2026-50056","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Zimbra Collaboration Suite Local Privilege Escalation via Unrestricted Postfix Sudo Permissions","id":"CVE-2026-50057"},"packages":[],"prev":{"headline":"Zimbra Collaboration Suite Sieve Notify Filter Action Bypasses Mail Forwarding Restriction via Variable Expansion","id":"CVE-2026-50055"},"products":["Zimbra Collaboration Suite"],"published":"2026-10-23","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":"total"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Zimbra"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-50056/"}