What is CVE-2021-4236?

CVE-2021-4236 is a critical-severity vulnerability in Github.com/ecnepsnai/web, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2022-12-27.

How severe is CVE-2021-4236?

Critical severity. CVSS v3 base score is 9.8 out of 10.

NULL pointer dereference in Github.com/ecnepsnai/web

CVE-2021-4236

Web Sockets do not execute any AuthenticateMethod methods which may be set, leading to a nil pointer dereference if the returned UserData pointer is assumed to be non-nil, or authentication bypass. This issue only affects WebSockets with a…

EPSS: 0.011 (62.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Github.com/ecnepsnai/web — versions 1.4.0
Web_project Web

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

security@golang.org (Patch, Third Party Advisory)
security@golang.org (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-4236?: CVE-2021-4236 is a critical-severity vulnerability in Github.com/ecnepsnai/web, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2022-12-27.
How severe is CVE-2021-4236?: Critical severity. CVSS v3 base score is 9.8 out of 10.