What is CVE-2026-33814?

CVE-2026-33814 is a high-severity vulnerability in Golang Go, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-05-07.

How severe is CVE-2026-33814?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Golang Go

CVE-2026-33814

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.

EPSS: 0.000 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Golang Go
Golang Http2
Golang.org/x/net Golang.org/x/net/http2 — versions 0
Go Standard Library Net/http — versions 0, 1.26.0-0

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

security@golang.org (Patch)
security@golang.org (Patch)
security@golang.org (Mailing List, Issue Tracking)
security@golang.org (Release Notes)
security@golang.org (Vendor Advisory)

Frequently asked questions

What is CVE-2026-33814?: CVE-2026-33814 is a high-severity vulnerability in Golang Go, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-05-07.
How severe is CVE-2026-33814?: High severity. CVSS v3 base score is 7.5 out of 10.