CVE-2026-44046Network attack vector

Authenticated access-control bypass via spoofed client IP

Published Jun 19, 2026 · Updated Jun 19, 2026

Identity spoofing in Apache APISIX 1.2.0 through 3.16.0 allows remote authenticated users to bypass IP-based access controls. The wolf-rbac plugin reads the raw X-Real-IP header into wolf-server's access_check clientIP parameter, bypassing NGINX real-IP processing. The default configuration trusts only loopback and Unix-socket proxies, but the direct header read lets external clients pollute logs and evade IP rules.

CVSS severity2.3
Low
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Identity spoofing in Apache APISIX 1.2.0 through 3.16.0 allows remote authenticated users to bypass IP-based access controls. The wolf-rbac plugin reads the raw X-Real-IP header into wolf-server's access_check clientIP parameter, bypassing NGINX real-IP processing. The default configuration trusts only loopback and Unix-socket proxies, but the direct header read lets external clients pollute logs and evade IP rules.

The record

CVE
CVE-2026-44046
Published
Jun 19, 2026
Updated
Jun 19, 2026
Vendor
The Apache Software Foundation
Product
Apache APISIX
Classifications
CWE-348
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.2.0 <=3.16.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache APISIXversion=1.2.0 <=3.16.0

Published CVSS scores

2.3Apache Software FoundationCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-348Use of Less Trusted Source

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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