PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-41234 froxlor CVE debrief

CVE-2026-41234 is a HIGH severity vulnerability in Froxlor server administration software. An authenticated customer with DNS editing enabled can inject newlines into TXT record values via the `DomainZones.add` API endpoint. This allows for injection of arbitrary BIND directives and DNS records into the zone file written to disk by the DNS rebuild cron. This is an incomplete fix for CVE-2026-30932. Version 2.3.7 contains an updated patch.

Vendor
froxlor
Product
Unknown
CVSS
HIGH 7.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-22
Advisory published
2026-06-04
Advisory updated
2026-07-22

Who should care

Administrators of Froxlor server administration software should be aware of this vulnerability and take steps to upgrade to version 2.3.7 or later.

Technical summary

The `DomainZones.add` API endpoint in Froxlor prior to version 2.3.7 does not sanitize newline characters in TXT record content. This allows an authenticated customer with DNS editing enabled to inject newlines into TXT record values, which can be used to inject arbitrary BIND directives and DNS records into the zone file.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade to Froxlor version 2.3.7 or later.
  • Review and restrict access to the `DomainZones.add` API endpoint.
  • Monitor DNS rebuild cron jobs for suspicious activity.

Evidence notes

CVE-2026-41234 has a CVSS score of 7.6 and is considered HIGH severity. The vulnerability was published on 2026-06-04T19:16:28.963Z and modified on 2026-06-05T15:09:21.430Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-41234 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-41234

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-41234 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-41234

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.