Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

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

Quick assessment

Affected
pbuchbinder mod_qos
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 mod_qos 模块中发现一个漏洞。当将请求体参数与现有的 URL 查询字符串合并时，会发生指针计算错误（差一错误），导致在安全评估过程中截断查询字符串，而实际请求内容保持不变。未认证的远程攻击者可通过提交特制的请求，将受禁止的值隐藏起来以规避检测，从而绕过已配置的安全规则。

CVSS 5.3 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-114460

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Mod_qos: query truncation during json body merging permits security-rule bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
Off-by-one错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pbuchbinder mod_qos 11.74 -

II. Public POCs for CVE-2026-114460

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-114460

请登录查看更多情报信息。

Other References for CVE-2026-114460 (2)

Same Patch Batch · pbuchbinder · 2026-10-22 · 4 CVEs total

CVE-2026-114458 5.9 MEDIUM Mod_qos: undersized connection-monitor scratch array permits heap buffer overflow
CVE-2026-114457 3.7 LOW Mod_qos: missing nul termination in json value escaping permits out-of-bounds reads
CVE-2026-114459 3.7 LOW Mod_qos: out-of-bounds reads in response-body substring matching

IV. Related Vulnerabilities

Same product: mod_qos
Same vendor: pbuchbinder
Same weakness: CWE-193

V. Comments for CVE-2026-114460

No comments yet

Leave a comment