CVE-2026-114460
Mod_qos: query truncation during json body merging permits security-rule bypass
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in mod_qos. An off-by-one pointer calculation error occurs when merging request body parameters with an existing URL query, which truncates the query string during security evaluation while leaving the actual request unchanged. An unauthenticated remote attacker could exploit this vulnerability by submitting a crafted request that conceals prohibited values from inspection, resulting in a bypass of configured security rules.
| CWE | CWE-193 |
| Vendor | pbuchbinder |
| Product | mod_qos |
| Published | Oct 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
pbuchbinder / mod_qos
11.74 11.76 11.79
References
Credits
Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.