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Vulnerability record/PUBLISHED/Published Nov 13, 2026 17:50:12 UTC

CVE-2026-124719

Authentication bypass by spoofing vulnerability in Apache APISIX. When a Route's configured headers carry a caller identity and the OpenAPI document declares the same header, a caller can act as another identity against the upstream API. This issue affects Apache APISIX: from 3.19.0 before 3.20.0. Users are recommended to upgrade to version 3.20.0, which fixes the issue.

Base score2.3/ 10
SeverityLowCVSS 4.0

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityLow
Attack vectorNetworkAV
Attack complexityLowAC
Attack requirementsPresentAT
Privileges requiredLowPR
User interactionNoneUI
Vulnerable system confidentialityNoneVC
Vulnerable system integrityNoneVI
Vulnerable system availabilityNoneVA
Subsequent system confidentialityLowSC
Subsequent system integrityLowSI
Subsequent system availabilityNoneSA
CVSS vector stringCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS 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 23:05:02 UTC
PublishedNov 13, 2026 17:50:12 UTC
ReservedNov 9, 2026 10:56:03 UTC

Credits

  • Kai (GitHub: ha2fde)
  • shreemaan-abhishek