CVE-2026-41230

Froxlor is open source server administration software. Prior to version 2.3.6, `DomainZones::add()` accepts arbitrary DNS record types without a whitelist and does not sanitize newline characters in the `content` field. When a DNS type not covered by the if/elseif validation chain is submitted (e.g., `NAPTR`, `PTR`, `HINFO`), content validation is entirely bypassed. Embedded newline characters in the content survive `trim()` processing, are stored in the database, and are written directly into BIND zone files via `DnsEntry::__toString()`. An authenticated customer can inject arbitrary DNS records and BIND directives (`$INCLUDE`, `$ORIGIN`, `$GENERATE`) into their domain's zone file. Version 2.3.6 fixes the issue.

• CWE-93

• https://github.com/froxlor/froxlor/commit/47a8af5d9523cb6ec94567405cfc2e294d3a1442Patch
• https://github.com/froxlor/froxlor/releases/tag/2.3.6Release Notes
• https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8cExploit, Mitigation, Vendor Advisory
• https://github.com/froxlor/froxlor/security/advisories/GHSA-47hf-23pw-3m8cExploit, Mitigation, Vendor Advisory

Published

Apr 23, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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