Description
An issue was discovered in Squid 4.9 through 4.17 and 5.0.6 through 5.6. Due to inconsistent handling of internal URIs, there can be Exposure of Sensitive Information about clients using the proxy via an HTTPS request to an internal cache manager URL. This is fixed in 5.7.
References (4)
Scores
CVSS v3
6.5
EPSS
0.0132
EPSS Percentile
80.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-697
Status
published
Products (1)
squid-cache/squid
4.9 - 4.17
Published
Dec 25, 2022
Tracked Since
Feb 18, 2026