What’s Vulnerable › Vulnerabilities

CVE-2026-114460: Mod_qos: query truncation during json body merging permits security-rule bypass

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-22 · updated 2026-10-30
• Weakness: CWE-193

Description

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.

Affected products

• pbuchbinder mod_qos: 11.74, 11.76, 11.79

References

• https://access.redhat.com/security/cve/CVE-2026-114460
• https://bugzilla.redhat.com/show_bug.cgi?id=2558401

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