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CVE-2026-63041— Apache APISIX: attach-consumer-label does not strip client-supplied consumer-label headers

Quick assessment

Affected
Apache Software Foundation Apache APISIX
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.

Apache APISIX是美国Apache基金会的一款API网关。 Apache APISIX 3.11.0版本至3.17.0版本存在输入验证错误漏洞，该漏洞源于安全决策中依赖不可信输入，即attach-consumer-label插件未能正确清理某些值，可能导致权限提升或授权绕过。

CVSS 5.3 · Medium EPSS 0.68% · P52

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache APISIX 3.11.0≤ 3.17.0 affected
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I. Basic Information for CVE-2026-63041

Vulnerability Information
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Vulnerability Title
Apache APISIX: attach-consumer-label does not strip client-supplied consumer-label headers
Source: CVE Program / CVE List V5
Vulnerability Description
Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX. This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly. This issue affects Apache APISIX: from 3.11.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在安全决策中依赖未经信任的输入
Source: CVE Program / CVE List V5
Vulnerability Title
Apache APISIX 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache APISIX是美国Apache基金会的一款API网关。 Apache APISIX 3.11.0版本至3.17.0版本存在输入验证错误漏洞，该漏洞源于安全决策中依赖不可信输入，即attach-consumer-label插件未能正确清理某些值，可能导致权限提升或授权绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache APISIX 3.11.0 ~ 3.17.0 -

II. Public POCs for CVE-2026-63041

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III. Intelligence Information for CVE-2026-63041

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Mailing List Discussions for CVE-2026-63041 (1)

IV. Related Vulnerabilities

Same product: Apache APISIX
Same vendor: Apache Software Foundation
Same weakness: CWE-807

V. Comments for CVE-2026-63041

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