CVE-2026-75514 Details
UNDERGOING ENRICHMENT
The CVE is currently being enriched by the Volerion team. The enrichment process results in the association of reference link tags, CVSS, and CPE applicability statement data.
Description
BunkerWeb is an open-source, next-generation Web Application Firewall. Prior to 1.6.13, the blacklist, greylist, and antibot modules in src/common/core/blacklist/blacklist.lua, src/common/core/greylist/greylist.lua, and src/common/core/antibot/antibot.lua trust PTR suffix matches in IGNORE_RDNS, GREYLIST_RDNS, and ANTIBOT_IGNORE_RDNS without using get_ips to confirm that the hostname resolves to the client address. An unauthenticated remote attacker who controls a PTR record can spoof a trusted suffix to bypass rDNS-based blacklisting, gain greylist treatment, or skip an antibot challenge. This issue is fixed in version 1.6.13.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
VolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 20, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-350 | Reliance on Reverse DNS Resolution for a Security-Critical Action | [email protected] |
Affected Products
This vulnerability is currently being analyzed
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 20, 2026 | New CVE Received | [email protected] |
| Aug 20, 2026 | CVE Modified | CISA-ADP |