CVE-2023-27491

Summary

Envoy is an open source edge and service proxy designed for cloud-native applications. Compliant HTTP/1 service should reject malformed request lines. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, There is a possibility that non compliant HTTP/1 service may allow malformed requests, potentially leading to a bypass of security policies. This issue is fixed in versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9.

Affected Software

VendorProductVersion RangeStatus
envoyproxyenvoy>= 1.25.0, < 1.25.3affected
envoyproxyenvoy>= 1.24.0, < 1.24.4affected
envoyproxyenvoy>= 1.23.0, < 1.23.6affected
envoyproxyenvoy< 1.22.9affected

Weaknesses

  • CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

References