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Vulnerability DatabaseCVE-2026-32854

CVE-2026-32854: 
NixOS vulnerability analysis and mitigation

LibVNCServer versions 0.9.15 and prior (fixed in commit dc78dee) contain null pointer dereference vulnerabilities in the HTTP proxy handlers within httpProcessInput() in httpd.c that allow remote attackers to cause a denial of service by sending specially crafted HTTP requests. Attackers can exploit missing validation of strchr() return values in the CONNECT and GET proxy handling paths to trigger null pointer dereferences and crash the server when httpd and proxy features are enabled.

Source: NVD

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-24660CRITICAL9.8
  • NixOSNixOS
  • LibRaw-static
NoYesApr 07, 2026
CVE-2026-24450CRITICAL9.8
  • NixOSNixOS
  • LibRaw-devel
NoYesApr 07, 2026
CVE-2026-21413CRITICAL9.8
  • NixOSNixOS
  • LibRaw-devel
NoYesApr 07, 2026
CVE-2026-39883HIGH7.3
  • PackerPacker
  • thanos
NoYesApr 08, 2026
CVE-2026-39882MEDIUM5.3
  • PrometheusPrometheus
  • frankenphp-8.3
NoYesApr 08, 2026

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