Vulnerability record/PUBLISHED/Published Nov 13, 2026 17:53:07 UTC
CVE-2026-124679
Authentication bypass by spoofing vulnerability in Apache APISIX. On routes using jwe-decrypt with strict: false and a forward_header distinct from the token header an unauthenticated client can supply the value the upstream treats as gateway-decrypted plaintext. Similar can happen when forward-auth is configured with allow_degradation: true, and the auth service is unavailable. This issue affects Apache APISIX: from 3.18.0 through 3.19.0. Users are recommended to upgrade to version 3.20.0, which fixes the issue.
Base score7.8/ 10
SeverityHighCVSS 4.0
Exploitability / impact
CVSS metric breakdown
Base severityHigh
Attack vectorNetworkAV
Attack complexityLowAC
Attack requirementsNoneAT
Privileges requiredNonePR
User interactionNoneUI
Vulnerable system confidentialityNoneVC
Vulnerable system integrityNoneVI
Vulnerable system availabilityNoneVA
Subsequent system confidentialityLowSC
Subsequent system integrityHighSI
Subsequent system availabilityNoneSA
CVSS vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:NCVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.
Record context
CVE Numbering Authorityapache
Last updatedNov 13, 2026 23:04:59 UTC
PublishedNov 13, 2026 17:53:07 UTC
ReservedNov 9, 2026 10:01:04 UTC
Credits
- Siyang Wu
- shreemaan-abhishek
- shreemaan-abhishek