CVE-2026-18674
- Source
- https://cve.org/CVERecord?id=CVE-2026-18674
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18674.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-18674
- Aliases
-
- GHSA-m58j-fjmc-h3g4
- Published
- 2026-08-17T12:08:11.470Z
- Modified
- 2026-08-19T03:48:10.324203404Z
- Severity
-
- 7.0 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:N CVSS Calculator
- Summary
- Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier
- Details
-
On a Kong Mesh global control plane, resources received over the zone-to-global KDS sync are attributed using the in-band, sender-controlled ControlPlane.Identifier rather than the authenticated zone identity derived from the connection. Authenticated zones can have the global control plane store and re-distribute those resources as belonging to another zone.
The result is a cross-zone isolation bypass: the holder of a single enrolled zone's credential can inject, attribute, and overwrite resources in another zone's namespace mesh-wide.
The root cause lives in Kuma's open-source KDS sync code, which Kong Mesh's control plane is built on.
- Database specific
{ "cna_assigner": "Kong", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18674.json", "cwe_ids": [ "CWE-345", "CWE-863" ] }- References
-
- https://developer.konghq.com/mesh/changelog/
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18674.json
- https://github.com/kumahq/kuma/security/advisories/GHSA-m58j-fjmc-h3g4
- https://nvd.nist.gov/vuln/detail/CVE-2026-18674
- https://github.com/kumahq/kuma/pull/17456
- https://github.com/kumahq/kuma/pull/17458
- https://github.com/kumahq/kuma/pull/17459
- https://github.com/kumahq/kuma/pull/17460
- https://github.com/kumahq/kuma/pull/17461
- https://github.com/kumahq/kuma/pull/17462
- https://github.com/kumahq/kuma/pull/17463
Affected packages
Git / github.com/kumahq/kuma
Affected ranges
- Type
- GIT
- Repo
- https://github.com/kumahq/kuma
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "2.7.29" }, { "introduced": "2.8.0" }, { "fixed": "2.9.19" }, { "introduced": "2.10.0" }, { "fixed": "2.11.18" }, { "introduced": "2.12.0" }, { "fixed": "2.12.14" }, { "introduced": "2.13.0" }, { "fixed": "2.13.10" }, { "introduced": "2.14.0" }, { "fixed": "2.14.2" } ], "source": "AFFECTED_FIELD" }
Affected versions
0.*
0.1.0
0.1.1
0.1.2
0.2.0
0.2.0-rc1
0.2.1
0.2.2
0.2.2-rc1
0.2.3-rc4
0.3.0
0.3.0-rc1
0.3.0-rc2
0.3.1
0.3.2
0.3.2-rc2
0.4.0
0.4.0-rc1
0.4.0-rc2
0.5.0
0.5.0-rc1
0.5.0-rc2
0.5.1
0.6.0
0.7.0
0.7.1
Other
080-preview-1
080-preview-2
080-preview-3
1.*
1.0.0-rc1
1.0.0-rc2
1.2.0
1.2.0-rc1
1.4.0-rc1
1.5.0-rc1
2.*
2.11.0
2.11.1
2.11.2
2.11.3
2.11.4
2.11.5
2.11.6
2.11.7
2.12.0
2.12.1
2.12.2
2.12.3
2.7.0
2.7.1
2.7.10
2.7.11
2.7.12
2.7.13
2.7.14
2.7.15
2.7.16
2.7.17
2.7.18
2.7.19
2.7.2
2.7.3
2.7.4
2.7.5
2.7.6
2.7.7
2.7.8
2.7.9
2.9.0
2.9.1
2.9.10
2.9.11
2.9.12
2.9.13
2.9.14
2.9.15
2.9.16
2.9.17
2.9.18
2.9.2
2.9.3
2.9.4
2.9.5
2.9.6
2.9.7
2.9.8
2.9.9
v2.*
v2.11.10
v2.11.11
v2.11.12
v2.11.13
v2.11.14
v2.11.15
v2.11.16
v2.11.17
v2.11.8
v2.11.9
v2.12.10
v2.12.11
v2.12.12
v2.12.13
v2.12.4
v2.12.5
v2.12.6
v2.12.7
v2.12.8
v2.12.9
v2.13.0
v2.13.1
v2.13.2
v2.13.3
v2.13.4
v2.13.5
v2.13.6
v2.13.7
v2.13.8
v2.13.9
v2.14.0
v2.14.1
v2.7.20
v2.7.21
v2.7.22
v2.7.23
v2.7.24
v2.7.25
v2.7.26
v2.7.27
v2.7.28
v2.9.13