{"answers":{"affected":"2 open source packages ship an affected version, including org.mariadb:r2dbc-mariadb.","exploited":"There is no known exploitation of CVE-2026-55860 in the wild and no public exploit code.","fix":"Upgrade org.mariadb:r2dbc-mariadb to 1.4.1 or later.","what":"CVE-2026-55860 is a medium-severity vulnerability in mariadb-corporation mariadb-connector-r2dbc, published on 28 Aug 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-2026-55860 and fix it if it is affected.\n\nWhat it is: CVE-2026-55860 is a medium-severity vulnerability in mariadb-corporation mariadb-connector-r2dbc, published on 28 Aug 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-2026-55860 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.mariadb:r2dbc-mariadb (Maven): affected all versions; fixed in 1.4.1\n- org.mariadb:r2dbc-mariadb (Maven): affected all versions; fixed in 1.4.1\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-2026-55860/ (Markdown: https://insights.sbomify.com/CVE-2026-55860/index.md)","id":"CVE-2026-55860","markdown":"https://insights.sbomify.com/CVE-2026-55860/index.md","name":"CVE-2026-55860","record":{"aliases":["GHSA-c857-9x2m-cvh2"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MariaDB Java connector","requires_auth":"none","summary":"A man-in-the-middle attacker can steal cleartext passwords from MariaDB Connector/R2DBC clients over unencrypted connections, leading to credential theft and database access.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-522","name":"Insufficiently Protected Credentials"},{"id":"CWE-319","name":"Cleartext Transmission of Sensitive Information"}],"description":"MariaDB Connector/R2DBC is a non-blocking MariaDB and MySQL client implemented in Java. Prior to 1.4.1, org.mariadb:r2dbc-mariadb does not gate clear-text password authentication plugins on transport encryption because the AuthenticationPlugin interface has no capability for a plugin to require a secure connection. A hostile or man-in-the-middle MariaDB server can send an AuthSwitchRequest naming mysql_clear_password or dialog (PAM) over a plain-TCP unencrypted connection, and AuthenticationFlow permits ClearPasswordPluginFlow or PamPluginFlow to return the user's password as cleartext bytes on the wire. The disclosed credentials can subsequently be used to authenticate directly to the database server. This issue is fixed in version 1.4.1.","ecosystems":["Maven"],"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":"org.mariadb:r2dbc-mariadb vulnerable to cleartext password disclosure to a man-in-the-middle server (clear-text auth plugins not gated on a secure transport)","id":"CVE-2026-55860","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":2,"n_references":5,"next":{"headline":"pupnp: Incomplete fix for CVE-2021-28302: recursive DOM functions cause stack overflow","id":"CVE-2026-55862"},"packages":[{"ecosystem":"Maven","fixed":["1.4.1"],"introduced":["0"],"last_affected":[],"package":"org.mariadb:r2dbc-mariadb","purl":null,"source":"GHSA-c857-9x2m-cvh2"},{"ecosystem":"Maven","fixed":["1.4.1"],"introduced":["0"],"last_affected":[],"package":"org.mariadb:r2dbc-mariadb","purl":"pkg:maven/org.mariadb/r2dbc-mariadb","source":"GHSA-c857-9x2m-cvh2"}],"prev":{"headline":"org.mariadb:r2dbc-mariadb has Inappropriate Encoding for Output Context and Improper Encoding or Escaping of Output","id":"CVE-2026-55859"},"products":["mariadb-connector-r2dbc","r2dbc-mariadb"],"published":"2026-08-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2026-08-31","vendors":["mariadb-corporation","org.mariadb"]},"summary":"A man-in-the-middle attacker can steal cleartext passwords from MariaDB Connector/R2DBC clients over unencrypted connections, leading to credential theft and database access.","url":"https://insights.sbomify.com/CVE-2026-55860/"}