Answer in brief
CVE-2026-18674 records a Unknown severity vulnerability in Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier. The current sources do not mark it as known exploited. The current feed maps Kong Inc./Kong Mesh (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-18674 records a Unknown severity vulnerability in Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier. The current sources do not mark it as known exploited. The current feed maps Kong Inc./Kong Mesh (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Kong Inc./Kong Mesh (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Kong Inc./Kong Meshgeneric | >=0 <2.7.29 || >=2.8.0 <2.9.19 || >=2.10.0 <2.11.18 || >=2.12.0 <2.12.14 || >=2.13.0 <2.13.10 || >=2.14.0 <2.14.2 | 2.7.29, 2.9.19, 2.11.18, 2.12.14, 2.13.10, 2.14.2 |
Published upstream
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Kong Inc./Kong Mesh (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Kong Inc./Kong Meshgeneric | >=0 <2.7.29 || >=2.8.0 <2.9.19 || >=2.10.0 <2.11.18 || >=2.12.0 <2.12.14 || >=2.13.0 <2.13.10 || >=2.14.0 <2.14.2 | 2.7.29, 2.9.19, 2.11.18, 2.12.14, 2.13.10, 2.14.2 |
Published upstream
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.