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Unrated severityNVD Advisory· Published Mar 4, 2009· Updated Jun 16, 2026

CVE-2009-0801

CVE-2009-0801

Description

Squid, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

17
  • Squid Cache/Squid Web Proxy Cache16 versions
    cpe:2.3:a:squid:squid_web_proxy_cache:2.7:*:*:*:*:*:*:*+ 15 more
    • cpe:2.3:a:squid:squid_web_proxy_cache:2.7:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:2.7.stable5:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:2.7.stable6:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_pre1:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_pre2:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_pre3:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable1:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable12:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable13:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable2:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable3:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable4:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable5:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable6:*:*:*:*:*:*:*
    • cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable7:*:*:*:*:*:*:*
  • Squidex/Squidexllm-fuzzy

Patches

Vulnerability mechanics

References

2

News mentions

0

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