Skip to content
CVE PROGRAM SOURCE RECORD6.3 Medium

CVE-2026-48142

NGINX ngx_http_charset_module vulnerability

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
f5

Description

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When content is served or proxied through a location block with both source_charset utf-8; and a charset directive (for example, charset koi8-r;) configured, remote, unauthenticated attackers can send requests (in conjunction with conditions beyond their control) to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

F5 NGINX Open Source

Default version status: unknown

  • 1.13.10 to < 1.31.2affected
  • 1.30.0 to < 1.30.3affected

F5 NGINX Plus

Default version status: unaffected

  • 37.0 to < 37.0.2.1affected
  • R36 to < R36 P6affected

References