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Vulnerability record · CVE-2004-2479 · published 31 December 2004

CVE-2004-2479: National science foundation squid web proxy cache vulnerability

National Science Foundation · Squid Web Proxy Cache

Squid Web Proxy Cache 2.5 might allow remote attackers to obtain sensitive information via URLs containing invalid hostnames that cause DNS operations to fail, which results in references to previously used error messages.

5.0 CVSS 2.0 Medium EPSS 2.1% · top 19.2%
5.0CVSS 2.0 base score
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References
16 Jun 2026Last modified by NVD

Description

Squid Web Proxy Cache 2.5 might allow remote attackers to obtain sensitive information via URLs containing invalid hostnames that cause DNS operations to fail, which results in references to previously used error messages.

AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://fedoranews.org/updates/FEDORA--.shtml
http://secunia.com/advisories/13408 PatchVendor Advisory
http://secunia.com/advisories/16977
http://securitytracker.com/id?1012466 Patch
http://www.osvdb.org/12282
http://www.redhat.com/support/errata/RHSA-2005-766.html
http://www.securityfocus.com/bid/11865 Patch
http://www.squid-cache.org/bugs/show_bug.cgi?id=1143 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/18406
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9711
http://fedoranews.org/updates/FEDORA--.shtml
http://secunia.com/advisories/13408 PatchVendor Advisory
http://secunia.com/advisories/16977
http://securitytracker.com/id?1012466 Patch
http://www.osvdb.org/12282
http://www.redhat.com/support/errata/RHSA-2005-766.html
http://www.securityfocus.com/bid/11865 Patch
http://www.squid-cache.org/bugs/show_bug.cgi?id=1143 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/18406
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9711

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2004-0541Squid Web Proxy NTLM auth buffer overflow allows remote code executionSquid Web Proxy Cache 2.5.x and 3.x, when built with NTLM handlers enabled, contains a buffer overflow in the ntlm_check_auth function. A long passwo…EPSS 71%analysed5.0CVE-2004-2480National science foundation squid web proxy cache vulnerabilitySquid Web Proxy Cache 2.3.STABLE5 allows remote attackers to bypass security controls and access arbitrary websites via "@@" sequences in a URL withi…EPSS 3.0%

Source: NIST National Vulnerability Database (record CVE-2004-2479), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.