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Vulnerability record · CVE-2001-1030 · published 18 July 2001

CVE-2001-1030: Caldera openlinux server vulnerability

Caldera · Openlinux Server

Squid before 2.3STABLE5 in HTTP accelerator mode does not enable access control lists (ACLs) when the httpd_accel_host and http_accel_with_proxy off settings are used, which allows attackers to bypass the ACLs and conduct unauthorized activities such as port scanning.

7.5 CVSS 2.0 High EPSS 2.0% · top 20.5%
7.5CVSS 2.0 base score
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

Description

Squid before 2.3STABLE5 in HTTP accelerator mode does not enable access control lists (ACLs) when the httpd_accel_host and http_accel_with_proxy off settings are used, which allows attackers to bypass the ACLs and conduct unauthorized activities such as port scanning.

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

Affected products

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

References

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

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Source: NIST National Vulnerability Database (record CVE-2001-1030), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.