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CVE-2026-87106

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2026
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

Consul vulnerable to a denial of service in the native RPC listener

Consul and Consul Enterprise are vulnerable to a denial of service in the native RPC listener that may allow an authenticated client to exhaust server memory before ACL authorization is evaluated. A client that can complete the internal RPC mTLS handshake may exploit this issue without holding a valid ACL token. This vulnerability (CVE-2026-87106) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Consul

Vendor
HashiCorp
Product
Consul
Platforms
  • 64 bit
  • 32 bit
  • x86
  • ARM
  • MacOS
  • Windows
  • Linux
Default status
unaffected
Consul · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
1.21.0affectedsemver2.0.4UnavailableNone listed

Consul Enterprise

Vendor
HashiCorp
Product
Consul Enterprise
Platforms
  • 64 bit
  • 32 bit
  • x86
  • ARM
  • MacOS
  • Windows
  • Linux
Default status
unaffected
Consul Enterprise · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
1.21.0affectedsemver2.0.4Unavailable
  1. 1.21.18 → unaffected
  2. 1.22.12 → unaffected