Is go.etcd.io/etcd affected by CVE-2026-33413?

Go go.etcd.io/etcd is affected in >=0.

Is CVE-2026-33413 being exploited?

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

medium

CVE-2026-33413

Go · go.etcd.io/etcd • Go · go.etcd.io/etcd/v3

Summary

Authorization bypasses in multiple APIs in go.etcd.io/etcd

Severity: medium
EPSS: 0.2% (p16)
Also known as: GHSA-q8m4-xhhv-38mg, GHSA-q8m4-xhhv-38mg#go.etcd.io/etcd, GHSA-q8m4-xhhv-38mg#go.etcd.io/etcd/v3, BIT-etcd-2026-33413, GO-2026-4806, GO-2026-4806#go.etcd.io/etcd, GO-2026-4806#go.etcd.io/etcd/v3
Published: 2026-04-07

References

https://github.com/etcd-io/etcd/security/advisories/GHSA-q8m4-xhhv-38mg

Related advisories

CVE-2026-33343 — medium · Go/go.etcd.io/etcd

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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.