VDB

ALPINE-CVE-2021-33620

ALPINE-CVE-2021-33620 PUBLISHED CVSS 6.5 MEDIUM

Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server.

Risk Scores

CVSS v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.16squid5.0.5-r0, 5.0.4-r1, 5.0.4-r0
Alpine:v3.17squid0, 2.7.6-r0, 2.7.6-r1
Alpine:v3.21squid0, 5.0.5-r0, 5.0.4-r1
Alpine:v3.22squid2.7.6-r0, 2.7.6-r1, 2.7.6-r11
Alpine:v3.20squid3.5.4-r1, 0, 2.7.6-r0
Alpine:v3.18squid2.7.6-r0, 5.0.5-r0, 5.0.4-r1
Alpine:v3.15squid2.7.6-r0, 2.7.6-r10, 2.7.6-r11
Alpine:v3.23squid3.3.8-r1, 0, 2.7.6-r1
Alpine:v3.19squid5.0.5-r0, 5.0.4-r1, 5.0.4-r0

Timeline

  • May 28, 2021 CVE Published
  • Dec 3, 2025 CVE Updated
  • Apr 30, 2026 Distribution Patch
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