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Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin in github.com/kumahq/kuma

Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin in github.com/kumahq/kuma

CVE-2026-18676Published 1 month agoUpdated 1 week agoSource: OSV

Affected packages

  • github.com/kumahq/kuma
  • github.com/kumahq/kuma/v2

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
—
EPSS percentile
—

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.

Sources

Structured record: https://osv.dev/vulnerability/GO-2026-5102

Recommended response stack

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Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin in github.com/kumahq/kuma | HackTribune