CVE-2021-31808

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published
May 27, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-31808: Medium severity, CVSS 6.5 | Vulnix