{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-27860 in the wild and no public exploit code.","fix":"Change a configuration setting.","what":"CVE-2026-27860 is a low-severity vulnerability in Dovecot Dovecot, published on 27 Mar 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-2026-27860 and fix it if it is affected.\n\nWhat it is: CVE-2026-27860 is a low-severity vulnerability in Dovecot Dovecot, published on 27 Mar 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-2026-27860 in the wild and no public exploit code.\n\nAffected product: Dovecot Dovecot. 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-2026-27860/ (Markdown: https://insights.sbomify.com/CVE-2026-27860/index.md)","id":"CVE-2026-27860","markdown":"https://insights.sbomify.com/CVE-2026-27860/index.md","name":"CVE-2026-27860","record":{"aliases":["ALPINE-CVE-2026-27860","AZL-81716","DEBIAN-CVE-2026-27860","GHSA-3322-wpc2-p4m7","UBUNTU-CVE-2026-27860"],"analysis":{"component_type":"server_software","fix_type":"configuration_change","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Dovecot LDAP authentication","requires_auth":"none","summary":"Attackers can inject LDAP filters to bypass restrictions and probe structure if auth_username_chars is empty in Dovecot.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"OX","cpe":[{"product":"dovecot","vendor":"dovecot"},{"product":"dovecot","vendor":"open-xchange"}],"cvss":{"score":3.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-90","name":"Improper Neutralization of Special Elements used in an LDAP Query"}],"description":"If auth_username_chars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out auth_username_chars, or install fixed version. No publicly available exploits are known.","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 OX Dovecot Pro","id":"CVE-2026-27860","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"dovecot:dovecot","products":["dovecot:dovecot"],"type":"other","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"CROSS-SITE SCRIPTING (XSS) VIA THE CMDCOOKIE PARAMETER REGESTA SMART HD-PLC OF TELDAT","id":"CVE-2026-27867"},"packages":[],"prev":{"headline":"Denial of service in OX Dovecot Pro","id":"CVE-2026-27859"},"products":["OX Dovecot Pro"],"published":"2026-03-27","related":[{"cvss_score":7.7,"headline":"Auth bypass in OX Dovecot Pro","id":"CVE-2026-24031","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":7.5,"headline":"Denial of service in OX Dovecot Pro","id":"CVE-2025-59032","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":7.5,"headline":"Denial of service in OX Dovecot Pro","id":"CVE-2026-27858","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":7.5,"headline":"Path traversal in n/a","id":"CVE-2021-29157","kev_date_added":null,"published":"2021-06-28"},{"cvss_score":7.5,"headline":"Null dereference in n/a","id":"CVE-2020-10957","kev_date_added":null,"published":"2020-05-18"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2020-7046","kev_date_added":null,"published":"2020-02-12"},{"cvss_score":7.5,"headline":"Null dereference in n/a","id":"CVE-2019-11494","kev_date_added":null,"published":"2019-05-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-03-27","vendors":["Open-Xchange GmbH"]},"summary":"Attackers can inject LDAP filters to bypass restrictions and probe structure if auth_username_chars is empty in Dovecot.","url":"https://insights.sbomify.com/CVE-2026-27860/"}