Is github.com/openziti/zrok affected by CVE-2026-40302?

Go github.com/openziti/zrok is affected in <=1.1.11.

Is CVE-2026-40302 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

medium

CVE-2026-40302

Q: Is CVE-2026-40302 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

Go · github.com/openziti/zrok • Go · github.com/openziti/zrok/v2

Summary

zrok: Reflected XSS in GitHub OAuth callback via unsanitized refreshInterval error rendering

Severity: medium
EPSS: 0.2% (p11)
Also known as: GHSA-4fxq-2x3x-6xqx#github.com/openziti/zrok, GHSA-4fxq-2x3x-6xqx#github.com/openziti/zrok/v2
Published: 2026-04-16

References

https://github.com/openziti/zrok/security/advisories/GHSA-4fxq-2x3x-6xqx
https://nvd.nist.gov/vuln/detail/CVE-2026-40302
https://github.com/openziti/zrok

Related advisories

CVE-2026-45576 — high · Go/github.com/openziti/zrok
CVE-2026-42275 — high · Go/github.com/openziti/zrok
CVE-2026-40303 — high · Go/github.com/openziti/zrok
CVE-2026-40304 — medium · Go/github.com/openziti/zrok

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.