CVE-2016-10002

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-01-27 · updated 2026-06-17
Weakness: CWE-200

Description

Incorrect processing of responses to If-None-Modified HTTP conditional requests in Squid HTTP Proxy 3.1.10 through 3.1.23, 3.2.0.3 through 3.5.22, and 4.0.1 through 4.0.16 leads to client-specific Cookie data being leaked to other clients. Attack requests can easily be crafted by a client to probe a cache for this information.

Affected products

Debian Linux: 8.0
Squid: 3.1.10, 3.1.11, 3.1.12, 3.1.14, 3.1.15, 3.1.16 (+115)

References

http://rhn.redhat.com/errata/RHSA-2017-0182.html
http://rhn.redhat.com/errata/RHSA-2017-0183.html
http://www.debian.org/security/2016/dsa-3745
http://www.openwall.com/lists/oss-security/2016/12/18/1
http://www.securityfocus.com/bid/94953
http://www.securitytracker.com/id/1037513
http://www.squid-cache.org/Advisories/SQUID-2016_11.txt
http://rhn.redhat.com/errata/RHSA-2017-0182.html
http://rhn.redhat.com/errata/RHSA-2017-0183.html
http://www.debian.org/security/2016/dsa-3745
http://www.openwall.com/lists/oss-security/2016/12/18/1
http://www.securityfocus.com/bid/94953

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