What’s Vulnerable › Vulnerabilities

CVE-2015-8852

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-04-25 · updated 2026-06-17

Description

Varnish 3.x before 3.0.7, when used in certain stacked installations, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a header line terminated by a \r (carriage return) character in conjunction with multiple Content-Length headers in an HTTP request.

Affected products

• Debian Linux: 7.0
• Varnish Cache Project Varnish Cache: 3.0.0-beta1, 3.0.0-beta2, 3.0.1, 3.0.2, 3.0.3, 3.0.4 (+2)

References

• http://lists.opensuse.org/opensuse-updates/2016-05/msg00064.html
• http://www.debian.org/security/2016/dsa-3553
• http://www.openwall.com/lists/oss-security/2016/04/16/1
• http://www.openwall.com/lists/oss-security/2016/04/18/7
• https://github.com/varnish/Varnish-Cache/commit/29870c8fe95e4e8a672f6f28c5fbe692bea09e9c
• https://github.com/varnish/Varnish-Cache/commit/85e8468bec9416bd7e16b0d80cb820ecd2b330c3
• https://security.gentoo.org/glsa/201607-10
• https://www.varnish-cache.org/lists/pipermail/varnish-announce/2015-March/000701.html
• http://lists.opensuse.org/opensuse-updates/2016-05/msg00064.html
• http://www.debian.org/security/2016/dsa-3553
• http://www.openwall.com/lists/oss-security/2016/04/16/1
• http://www.openwall.com/lists/oss-security/2016/04/18/7

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