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Servers and applications

CVE-2026-48142

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…

Severity
Medium 6.3
Published
17 Jun 2026
Last changed
11 Aug 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
nginxServers and applications · cpe:a:f5:nginx_open_source
  • From 1.0.0 up to 1.30.2
  • From 1.31.0 up to 1.31.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-48142
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-48142