CVE-2026-31908: CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in Apache Software Foundation Apache APISIX
Header injection vulnerability in Apache APISIX. The attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers. This issue affects Apache APISIX: from 2.12.0 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the issue.
AI Analysis
Technical Summary
This vulnerability involves a failure to sanitize special elements properly in Apache APISIX's forward-auth plugin, categorized under CWE-75 (Special Element Injection). It allows an attacker to inject malicious HTTP headers when certain configurations are used. The affected versions range from 2.12.0 to 3.15.0. The vendor has released version 3.16.0 which addresses this issue.
Potential Impact
An attacker exploiting this vulnerability can inject unauthorized headers into HTTP requests processed by Apache APISIX, potentially leading to security issues such as request forgery or bypassing security controls depending on the deployment context. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.16.0, where this vulnerability has been fixed. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor's recommendation to upgrade.
CVE-2026-31908: CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in Apache Software Foundation Apache APISIX
Description
Header injection vulnerability in Apache APISIX. The attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers. This issue affects Apache APISIX: from 2.12.0 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the issue.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a failure to sanitize special elements properly in Apache APISIX's forward-auth plugin, categorized under CWE-75 (Special Element Injection). It allows an attacker to inject malicious HTTP headers when certain configurations are used. The affected versions range from 2.12.0 to 3.15.0. The vendor has released version 3.16.0 which addresses this issue.
Potential Impact
An attacker exploiting this vulnerability can inject unauthorized headers into HTTP requests processed by Apache APISIX, potentially leading to security issues such as request forgery or bypassing security controls depending on the deployment context. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.16.0, where this vulnerability has been fixed. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor's recommendation to upgrade.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-03-10T08:20:51.948Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ddf7fa82d89c981f0815e0
Added to database: 4/14/2026, 8:16:58 AM
Last enriched: 4/14/2026, 8:32:06 AM
Last updated: 4/14/2026, 12:09:48 PM
Views: 8
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