NULL pointer dereference in Golang.org/x/net Golang.org/x/net/http2

CVE-2026-27141

Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic

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: 0.007 (49.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-27141: held from 0.005 to 0.007.

EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-27141?
CVE-2026-27141 is a high-severity vulnerability in Golang.org/x/net Golang.org/x/net/http2, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-02-26.
How severe is CVE-2026-27141?
High severity. CVSS v3 base score is 7.5 out of 10.