CVE-2026-87090

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Source
https://cve.org/CVERecord?id=CVE-2026-87090
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87090.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-87090
Aliases
Downstream
CGA (4)
MINI (2)
UBUNTU (1)
Published
2026-09-10T18:54:45Z
Modified
2026-10-21T03:00:35Z
Severity
  • 8.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H CVSS Calculator
Summary
Consul vulnerable to an authorization bypass in the catalog node-write path
Details

Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog node-write path that may allow an authenticated attacker to delete another node's catalog registration and take over its node identity. An attacker with a token granting node-write permission on any single node name may exploit this issue if they can obtain the node ID of a node they do not control. This vulnerability (CVE-2026-87090) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

Database specific 
{
    "cna_assigner":  "HashiCorp",
    "cwe_ids":  [
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87090.json"
}
References

Affected packages

Git / github.com/hashicorp/consul

Affected ranges

Type
GIT
Repo
https://github.com/hashicorp/consul
Events
Introduced
9772693e4ddef3b388546c27511129ac5c39cf65
Fixed
a3eb721c21d4c1ff4baabf84da60158f374f8907
Fixed
bd0c5448a527f825308a97df4cd6615dda5d211c
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0.1.0"
                },
                {
                    "fixed":  "2.0.4"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0.1.0"
                },
                {
                    "fixed":  "1.21.18"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "ChangesAt"
        }
    ]
}

Affected versions

api/v1.*
api/v1.0.0
api/v1.0.1
api/v1.1.0
api/v1.10.0
api/v1.2.0
api/v1.32.1
api/v1.34.3
api/v1.4.0
ent-changelog-1.*
ent-changelog-1.11.0
ent-changelog-1.12.0
ent-changelog-1.13.0
ent-changelog-1.14.0
ent-changelog-1.15.0
ent-changelog-1.15.19
ent-changelog-1.16.0
ent-changelog-1.17.0
ent-changelog-1.18.0
ent-changelog-1.18.12
ent-changelog-1.18.13
ent-changelog-1.18.14
ent-changelog-1.18.15
ent-changelog-1.18.16
ent-changelog-1.18.17
ent-changelog-1.19.0
ent-changelog-1.19.10
ent-changelog-1.19.11
ent-changelog-1.19.12
ent-changelog-1.19.13
ent-changelog-1.20.0
ent-changelog-1.20.10
ent-changelog-1.20.11
ent-changelog-1.20.12
ent-changelog-1.20.13
ent-changelog-1.20.8
ent-changelog-1.20.9
ent-changelog-1.22.0
internal/v0.*
internal/v0.1.0
Other
list
proto-public/v0.*
proto-public/v0.1.0
proto-public/v0.1.1
proto-public/v0.8.2
sdk/v0.*
sdk/v0.1.0
sdk/v0.1.1
sdk/v0.18.0
sdk/v0.18.1
sdk/v0.18.2
sdk/v0.2.0
sdk/v0.4.0
v0.*
v0.1.0
v0.2.0
v0.2.1
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.5.0
v0.5.0rc1
v0.5.1
v0.5.2
v0.6.0
v0.6.0-rc1
v0.6.0-rc2
v0.6.1
v0.6.3
v0.6.4
v0.6.4-rc3
v0.7.0
v0.7.0-rc1
v0.7.0-rc2
v0.7.1
v0.7.2
v0.7.2-rc1
v0.7.3
v0.7.4
v0.8.0
v0.8.0-rc1
v0.8.1
v0.8.2
v0.8.4
v0.8.5
v0.9.0
v0.9.0-rc1
v0.9.1
v0.9.2
v0.9.3
v0.9.3-rc1
v0.9.3-rc2
v1.*
v1.0.0
v1.0.0-beta1
v1.0.0-beta2
v1.0.1
v1.0.1-rc1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.1.0
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.4.0
v1.4.0-rc1
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.6.0
v1.6.1
v1.7.0
v1.7.0-beta1
v1.7.0-beta2
v1.7.0-beta3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87090.json"