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TI-2026-24457 Aliases CVE-2026-31908GHSA-jv22-34xc-w9x6

Apache APISIX: forward auth plugin allows header injection

Priority MEDIUM 48CWE-75Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00521 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache APISIX2.12.0 – 3.15.0—No fix listedCNA
  • Apache APISIX VendorApache Affected 2.12.0 – 3.15.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*2.12.0 to before 3.16.0VulnerableApache
  • cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:* Versions 2.12.0 to before 3.16.0 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-31908
  2. 2026-10-03 Alias added: GHSA-jv22-34xc-w9x6

References

Advisory 2

  • TI-2022-08057 apisix/batch-requests plugin allows overwriting the X-REAL-IP header KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2020-10921 In Apache APISIX, the user enabled the Admin API and deleted the Admin API access IP… CVSS 3.1MEDIUM 6.5
  • TI-2022-09331 Apache APISIX: the body_schema check in request-validation plugin can be bypassed CVSS 3.1CRITICAL 9.8
  • TI-2021-19447 Path traversal in request_uri variable CVSS 3.1HIGH 7.5
  • TI-2026-52703 Apache APISIX: Unauthenticated CPU-exhaustion DoS CVSS 4.0HIGH 8.7
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences