UpHeron
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Servers and applications

CVE-2026-42934

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When charset, source_charset, and charset_map and proxy_pass with disabled buffering ("off") directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' control to cause a heap buffer over-read in the NGINX worker process, leading to limited…

Severity
Medium 6.3
Published
13 May 2026
Last changed
18 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
nginxServers and applications · cpe:a:f5:nginx_open_source
  • From 0.3.50 up to 0.9.7
  • From 1.0.0 up to 1.30.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-42934
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-42934