01 Record

CVE-2026-18674

Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier

HighPUBLISHEDCNA: Kong

CNA base score7.0 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:N

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02 Description

Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 46.2% of scored records. A rank, not a probability.

NVD base score

7.0 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-08-31.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-08-17 12:08Z2 MO AGO

Last updated

2026-08-17 14:46Z2 MO AGO

Reserved

2026-08-03

Assigning CNA

Kong

Record state

PUBLISHED

Severity

High (CVSS 7.0)

CNA CVSS vector

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

Weaknesses

CWE-345Insufficient Verification of Data AuthenticityClass
CWE-863Incorrect AuthorizationClass

Data version

5.2

Document digest

f43c27ff161a746c86e9145c6975ed987739cc82953f2230c116b48215a232f4

05 Affected products

VendorProductVersionsPlatforms

Kong Inc.Kong Mesh0 to < 2.7.29, 2.8.0 to < 2.9.19, 2.10.0 to < 2.11.18, 2.12.0 to < 2.12.14, 2.13.0 to < 2.13.10, 2.14.0 to < 2.14.2Linux

06 References

github.comUpstream advisory GHSA-m58j-fjmc-h3g4https://github.com/kumahq/kuma/security/advisories/GHSA-m58j-fjmc-h3g4vendor-advisory
github.comkumahq/kuma#17456 (master)https://github.com/kumahq/kuma/pull/17456patch
github.comkumahq/kuma#17458 (release-2.14 backport)https://github.com/kumahq/kuma/pull/17458patch
github.comkumahq/kuma#17461 (release-2.13 backport)https://github.com/kumahq/kuma/pull/17461patch
github.comkumahq/kuma#17463 (release-2.12 backport)https://github.com/kumahq/kuma/pull/17463patch
github.comkumahq/kuma#17462 (release-2.11 backport)https://github.com/kumahq/kuma/pull/17462patch
github.comkumahq/kuma#17460 (release-2.9 backport)https://github.com/kumahq/kuma/pull/17460patch
github.comkumahq/kuma#17459 (release-2.7 backport)https://github.com/kumahq/kuma/pull/17459patch
developer.konghq.comKong Mesh Changeloghttps://developer.konghq.com/mesh/changelog/release-notes

07 Remediation

Upgrade to Kong Mesh 2.7.29, 2.9.19, 2.11.18, 2.12.14, 2.13.10 or 2.14.2, whichever matches your release line. In patched versions the global KDS ingest path attributes synced resources by the authenticated connection identity instead of the in-band field.