CVE-2026-18677

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

0.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 23.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/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.

Published

2026-08-12 18:47Z23 DAYS AGO

Last updated

2026-08-13 14:49Z22 DAYS AGO

Reserved

2026-08-03

Assigning CNA

Kong

Record state

PUBLISHED

Severity

Medium (CVSS 6.0)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-290Authentication Bypass by SpoofingBase

Data version

5.2

Document digest

7402052a3349be4e303623b041d9f0e8fa9aa645f1b9c2b74f0b3add1f14e6bb

• github.comUpstream advisory GHSA-744g-c785-x65qhttps://github.com/kumahq/kuma/security/advisories/GHSA-744g-c785-x65qvendor-advisory
• github.comkumahq/kuma#17474 (master)https://github.com/kumahq/kuma/pull/17474patch
• github.comkumahq/kuma#17503 (release-2.13 backport)https://github.com/kumahq/kuma/pull/17503patch
• github.comkumahq/kuma#17502 (release-2.14 backport)https://github.com/kumahq/kuma/pull/17502patch
• developer.konghq.comKong MESH Changeloghttps://developer.konghq.com/mesh/changelog/release-notes