CVE-2026-27141

Aliases:GO-2026-4559
Advisory lineage Upstream: 0 Downstream: 8
Deferred
Published: 26 Feb 2026, 18:50
Last modified:27 Feb 2026, 19:11

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Feb 2026, 18:50
Published
Vulnerability first disclosed
27 Feb 2026, 19:11
Last Modified
Vulnerability information updated

Description

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

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 7%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • golang.org/x•net

    ≥ 0.50.0, < 0.51.0

  • golang.org/x/net•golang.org/x/net/http2

    ≥ 0.50.0, < 0.51.0

References (4)