{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/hmailserver-6.3.4-through-6.3.7/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7,"id":"CVE-2026-126611"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["hMailServer (6.3.4 through 6.3.7)"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eProgressive Robot hMailServer 6.3.4 through 6.3.7, when using a MySQL or MariaDB database with TlsMode=verify-full and no TlsCaFile, does not verify the database server's certificate's issuer or name for connections treated as local by MariaDB Connector/C. This allows a local attacker to impersonate the database server, receive the database sign-in (including the password), and read or modify traffic between hMailServer and the database. This behavior is linked to MariaDB Connector/C versions 3.4.1 and later failing to validate certificates on local connections in the absence of a CA file.\u003c/p\u003e\n","date_modified":"2026-11-11T14:03:45Z","date_published":"2026-11-11T14:03:45Z","id":"https://feed.craftedsignal.io/briefs/2026-11-cve-2026-126611-hmailserver/","summary":"A vulnerability in Progressive Robot hMailServer 6.3.4 through 6.3.7 allows a local attacker to perform a man-in-the-middle attack on database connections when configured with TlsMode=verify-full and no TlsCaFile.","title":"Progressive Robot hMailServer: Improper certificate validation in MariaDB/MySQL connections (CVE-2026-126611)","url":"https://feed.craftedsignal.io/briefs/2026-11-cve-2026-126611-hmailserver/"},{"_cs_actors":[],"_cs_cpes":["cpe:2.3:a:progressive_robot:hmailserver:*:*:*:*:*:*:*:*"],"_cs_cves":[{"cvss":7.4,"id":"CVE-2026-126610"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["hMailServer (6.3.4 through 6.3.7)"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":["Progressive Robot"],"content_html":"\u003cp\u003eProgressive Robot hMailServer 6.3.4 through 6.3.7, when configured with TlsMode=verify-full and a MySQL or MariaDB database, fails to pass the TlsCaFile to the database client when the filename contains characters outside ASCII (on Linux) or above U+00FF (on Windows).\u003c/p\u003e\n\u003cp\u003eThe application converts the file path using the C runtime in the C locale, resulting in an empty string and no CA file being set. Despite the lack of a CA file, certificate verification remains enabled, causing the client (MariaDB Connector/C) to verify the database server's certificate against the system's trust store instead of the configured file. This allows an attacker capable of intercepting the database connection to present a certificate from any authority or one issued for the server's name, facilitating traffic interception or modification.\u003c/p\u003e\n","date_modified":"2026-11-11T14:03:35Z","date_published":"2026-11-11T14:03:35Z","id":"https://feed.craftedsignal.io/briefs/2026-11-hmailserver-tls-verification-cve-2026-126610/","summary":"Progressive Robot hMailServer 6.3.4 through 6.3.7, when using a MySQL or MariaDB database with TlsMode=verify-full, fails to provide the configured CA file to the database client if the filename contains specific non-ASCII or high-Unicode characters. This results in the database client performing certificate verification without the intended CA, potentially allowing an attacker who intercepts the connection to read or modify traffic.","title":"Progressive Robot hMailServer: Database TLS verification failure (CVE-2026-126610)","url":"https://feed.craftedsignal.io/briefs/2026-11-hmailserver-tls-verification-cve-2026-126610/"}],"language":"en","title":"CraftedSignal Threat Feed - HMailServer (6.3.4 Through 6.3.7)","version":"https://jsonfeed.org/version/1.1"}