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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (55.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
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)
References
- go.dev/cl/761581 (Patch)
- go.dev/cl/761640 (Patch)
- go.dev/issue/78476 (Mailing List, Issue Tracking)
- groups.google.com/g/golang-announce/c/qcCIEXso47M (Release Notes)
- pkg.go.dev/vuln/GO-2026-4918 (Vendor Advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
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.