CVE-2026-31908

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache APISIX2.12.0 <= 3.15.0affected

Weaknesses

  • CWE-75: CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

References