{"answers":{"affected":"8 open source packages ship an affected version, including org.mariadb.jdbc:mariadb-java-client.","exploited":"There is no known exploitation of CVE-2026-55857 in the wild and no public exploit code.","fix":"Upgrade org.mariadb.jdbc:mariadb-java-client to a fixed version for your release line: 2.7.14, 3.3.5, 3.4.3 or 3.5.9.","what":"CVE-2026-55857 is a medium-severity vulnerability in mariadb-corporation mariadb-connector-j, 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-2026-55857 and fix it if it is affected.\n\nWhat it is: CVE-2026-55857 is a medium-severity vulnerability in mariadb-corporation mariadb-connector-j, 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-2026-55857 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected all versions; fixed in 2.7.14\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected all versions; fixed in 2.7.14\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected from 3.0.0; fixed in 3.3.5\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected from 3.0.0; fixed in 3.3.5\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected from 3.4.0; fixed in 3.4.3\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected from 3.4.0; fixed in 3.4.3\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected from 3.5.0; fixed in 3.5.9\n- org.mariadb.jdbc:mariadb-java-client (Maven): affected from 3.5.0; fixed in 3.5.9\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-2026-55857/ (Markdown: https://insights.sbomify.com/CVE-2026-55857/index.md)","id":"CVE-2026-55857","markdown":"https://insights.sbomify.com/CVE-2026-55857/index.md","name":"CVE-2026-55857","record":{"aliases":["CLEANSTART-2026-DB67213","CLEANSTART-2026-DR90917","CLEANSTART-2026-HN65934","CLEANSTART-2026-UR21896","ECHO-bfa8-1e82-e7b7","GHSA-qxvw-fvwx-5cp7","MINI-4w58-5fxv-m672","MINI-6fhx-fhp2-3q59","MINI-6jfx-637h-g42g","MINI-7qq7-w848-j84h","MINI-85qf-4p89-r9cv","MINI-8r5q-5426-6c9r","MINI-93rf-jg73-6w93","MINI-9pm2-58c6-cgqh","MINI-9x53-258c-3v8w","MINI-frrh-p5gh-pmrc","MINI-hxx9-cmx6-9jp8","MINI-mj37-hfqf-6h68","MINI-pc2m-vx6p-q287","MINI-pwcq-q9f7-6p85","MINI-vg23-2grg-xm8c"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"MariaDB Java connector","requires_auth":"none","summary":"A man-in-the-middle attacker can steal user passwords transmitted in cleartext by the MariaDB Connector/J driver during PAM authentication over insecure connections.","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/J is used to connect applications developed in Java to MariaDB and MySQL databases. Prior to 2.7.14, 3.3.5, 3.4.3, and 3.5.9, PAM dialog authentication can be coerced into transmitting the account password over an insecure connection. The mysql_clear_password plugin is gated behind a secure transport, but the sibling PAM handler SendPamAuthPacketFactory, named dialog by the server, does not declare that requirement and inherits the default secure-required value false; older branches implement the same affected behavior in SendPamAuthPacket. A hostile or man-in-the-middle server can send an Authentication Switch Request for dialog over plain TCP, causing the driver to return the user's password in cleartext when sslMode=DISABLE and restrictedAuth=null, which is the default configuration. Properly verified TLS and local Unix sockets are not exposed to this transport vector. This issue is fixed in versions 2.7.14, 3.3.5, 3.4.3, and 3.5.9.","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":"MariaDB Connector/J: Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials","id":"CVE-2026-55857","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":8,"n_references":6,"next":{"headline":"MariaDB Connector/J: Inappropriate Encoding for Output Context in org.mariadb.jdbc:mariadb-java-client","id":"CVE-2026-55858"},"packages":[{"ecosystem":"Maven","fixed":["2.7.14"],"introduced":["0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":null,"source":"GHSA-qxvw-fvwx-5cp7"},{"ecosystem":"Maven","fixed":["2.7.14"],"introduced":["0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":"pkg:maven/org.mariadb.jdbc/mariadb-java-client","source":"GHSA-qxvw-fvwx-5cp7"},{"ecosystem":"Maven","fixed":["3.3.5"],"introduced":["3.0.0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":null,"source":"GHSA-qxvw-fvwx-5cp7"},{"ecosystem":"Maven","fixed":["3.3.5"],"introduced":["3.0.0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":"pkg:maven/org.mariadb.jdbc/mariadb-java-client","source":"GHSA-qxvw-fvwx-5cp7"},{"ecosystem":"Maven","fixed":["3.4.3"],"introduced":["3.4.0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":null,"source":"GHSA-qxvw-fvwx-5cp7"},{"ecosystem":"Maven","fixed":["3.4.3"],"introduced":["3.4.0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":"pkg:maven/org.mariadb.jdbc/mariadb-java-client","source":"GHSA-qxvw-fvwx-5cp7"},{"ecosystem":"Maven","fixed":["3.5.9"],"introduced":["3.5.0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":null,"source":"GHSA-qxvw-fvwx-5cp7"},{"ecosystem":"Maven","fixed":["3.5.9"],"introduced":["3.5.0"],"last_affected":[],"package":"org.mariadb.jdbc:mariadb-java-client","purl":"pkg:maven/org.mariadb.jdbc/mariadb-java-client","source":"GHSA-qxvw-fvwx-5cp7"}],"prev":{"headline":"MariaDB Connector/J: Cleartext password disclosure to a MITM on the initial-handshake","id":"CVE-2026-55856"},"products":["mariadb-connector-j"],"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"]},"summary":"A man-in-the-middle attacker can steal user passwords transmitted in cleartext by the MariaDB Connector/J driver during PAM authentication over insecure connections.","url":"https://insights.sbomify.com/CVE-2026-55857/"}