Homepage

Inefficient Regular Expression Complexity The advisory has been revoked - it doesn't affect any version of package linux-sgx  (opens in a new tab)

Threat Intelligence

EPSS
0.81% (57th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS10-LINUXSGX-16767086
  • published20 May 2026
  • disclosed26 Mar 2026
Report a new vulnerability Found a mistake?

Introduced: 26 Mar 2026

CVE-2026-4926  (opens in a new tab)
CWE-1333  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-sgx package and not the linux-sgx package as distributed by Centos.

Impact:

A bad regular expression is generated any time you have multiple sequential optional groups (curly brace syntax), such as {a}{b}{c}:z. The generated regex grows exponentially with the number of groups, causing denial of service.

Patches:

Fixed in version 8.4.0.

Workarounds:

Limit the number of sequential optional groups in route patterns. Avoid passing user-controlled input as route patterns.

References