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CVE-2005-0194

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs),...

10.0 HighFix available

CVE-2005-0194 is a high vulnerability (CVSS 10.0) in Squid, published February 4, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.12%, the 92nd percentile. Fixed in squid 2.5.7-7.

Severity
10.0 HighCVSS 2.0, NVD
Exploit chance
5.12%EPSS, 92nd percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
2.5.7-7squid +3 more

Description

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.

Exploit likelihood

5.12%Up 3.7 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
squid
Debian:12
before 2.5.7-7
2.5.7-7
squid
Debian:13
before 2.5.7-7
2.5.7-7
squid
Debian:14
before 2.5.7-7
2.5.7-7
squid
Debian:3.0
From an advisory covering 4 CVEs
before 2.4.6-2woody6, plus listed versions
2.4.6-2woody4
2.4.6-2woody6

What each source reports

NVD Score used10.0

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.

Record
CVE-2005-0194
CVSS 2.0
10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Updated
2026-11-02
CVE ListNo score

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.

Record
CVE-2005-0194
Updated
2026-11-02
EUVDEUVD-2005-0195No score

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.

Record
EUVD-2005-0195
Updated
2026-11-03
GitHub AdvisoriesGHSA-3vc4-p4vg-f376No score

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs),...

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.

Record
GHSA-3vc4-p4vg-f376
Updated
2026-11-02
OSVNo score

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.

Record
CVE-2005-0194
Updated
2026-11-02
OSVDEBIAN-CVE-2005-0194No score

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.

Record
DEBIAN-CVE-2005-0194
Updated
2026-11-02

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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