CVE-2023-5824

HIGH
MEDIUM Priority: 0.25 BB Relevance: 76/100
Published: 2023-11-03 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service.

Weakness Classification (1)

Affected Software (5)

Bug Bounty Relevance

76 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

3.28%
Raw Score 0.032840
Percentile 88.7%
Date 2026-11-14

EPSS Trend

2026-11-14
0.03284
2026-11-13
0.03284
2026-11-12
0.03284
2026-11-10
0.03284
2026-11-09
0.03284
2026-11-08
0.03284
2026-11-07
0.03284
2026-11-06
0.03284
2026-11-05
0.03284
2026-11-04
0.03284

Intelligence Sources

mitre ref →
nvd ref →