{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93640 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-93640 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-93640 is a high-severity vulnerability in Zimbra Collaboration Suite, published on 23 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-93640 and fix it if it is affected.\n\nWhat it is: CVE-2026-93640 is a high-severity vulnerability in Zimbra Collaboration Suite, published on 23 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-93640 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-2026-93640/ (Markdown: https://insights.sbomify.com/CVE-2026-93640/index.md)","id":"CVE-2026-93640","markdown":"https://insights.sbomify.com/CVE-2026-93640/index.md","name":"CVE-2026-93640","record":{"aliases":["GHSA-m5xr-vr49-p6gj"],"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-732","name":"Incorrect Permission Assignment for Critical Resource"}],"description":"A local privilege escalation vulnerability in the optional dnscache package of Zimbra Collaboration Suite (ZCS) allows the Unix zimbra account to access files with root privileges. The passwordless sudo policy permits arbitrary arguments to zmunbound, whose wrapper forwards them to Unbound without restricting the configuration path. An attacker can supply a configuration that retains root privileges and disables the chroot. Include directives expose root-readable file contents through parser errors, while an attacker-selected logfile path creates a root-owned file or appends Unbound log records to an existing file. This can disclose password hashes and private keys and corrupt privileged configuration files, preventing affected services from starting with the modified configuration. The affected configuration is present in ZCS 10.1.16 and 10.1.21 dnscache packages.","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 Unrestricted zmunbound Sudo Configuration","id":"CVE-2026-93640","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 Classic Web Client Stored Cross-Site Scripting via Forged Share Invitation","id":"CVE-2026-93641"},"packages":[],"prev":{"headline":"A missing authorization vulnerability in Zimbra Collaboration Suite (ZCS) allows a delegated administrator with no explicit administrative g","id":"CVE-2026-93639"},"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":"2026-10-24","vendors":["Zimbra"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-93640/"}