NULL Pointer Dereference Affecting nginx-filesystem package, versions <2:1.26.3-2.0.1.module+el9.7.0+90870+e191ebad.1


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (14th percentile)

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  • Snyk IDSNYK-ORACLE9-NGINXFILESYSTEM-15979467
  • published11 Apr 2026
  • disclosed24 Mar 2026

Introduced: 24 Mar 2026

CVE-2026-27651  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:9 nginx-filesystem to version 2:1.26.3-2.0.1.module+el9.7.0+90870+e191ebad.1 or higher.
This issue was patched in ELSA-2026-7343.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nginx-filesystem package and not the nginx-filesystem package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS Base Scores

version 3.1