CVE-2026-105765

Consul vulnerable to an authorization bypass in the agent's service mesh leaf certificate API

7.5 High

HashiCorp Consul and Consul Enterprise 1.17.0 up to 2.0.4 are vulnerable to an authorization bypass in the agent's service mesh leaf certificate API that may allow an attacker without a valid ACL token to retrieve a cached service leaf certificate and its private key. This vulnerability (CVE-2026-105765) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.24%Unchanged since Oct 27, 2026

What each source reports

CVE List Score used 7.5

Consul vulnerable to an authorization bypass in the agent's service mesh leaf certificate API

Record: CVE-2026-105765
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-02

EUVDEUVD-2026-110050 7.5

Record: EUVD-2026-110050
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-g3r6-g7m5-3qf5 7.5

HashiCorp Consul and Consul Enterprise 1.17.0 up to 2.0.4 are vulnerable to an authorization...

Record: GHSA-g3r6-g7m5-3qf5
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-02

NVD 7.5

Record: CVE-2026-105765
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-03

OSV 7.5

Consul vulnerable to an authorization bypass in the agent's service mesh leaf certificate API

Record: CVE-2026-105765
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-04

OSVUBUNTU-CVE-2026-105765 7.5

Record: UBUNTU-CVE-2026-105765
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`consul` Ubuntu:18.04:LTS	All versions, plus listed versions 0.6.4~dfsg-3	None known
`consul` Ubuntu:20.04:LTS	All versions, plus listed versions 1.0.7~dfsg1-5ubuntu11.4.4~dfsg1-2ubuntu21.5.2+dfsg1-61.5.2+dfsg1-101.5.2+dfsg1-121.5.2+dfsg2-14	None known
`consul` Ubuntu:22.04:LTS	All versions, plus listed versions 1.7.4+dfsg1-11.8.7+dfsg1-3	None known

History

History
Recorded	Changed	Sources
Nov 4, 2026	facts	EUVD, NVD, OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-105765 is a high vulnerability (CVSS 7.5) in Hashicorp Consul, published October 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 14th percentile. No source names a fixed version.