CVE-2015-8852: n/a vulnerability

CVE-2015-8852: Varnish 3.x before 3.0.7, when used in certain stacked installations, allows remote attackers to inject arb...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 08:29 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects legacy Varnish 3.x before 3.0.7 in certain stacked proxy/cache deployments. A malformed HTTP request could make Varnish inject unintended response headers, enabling HTTP response splitting. Business impact depends on whether old Varnish sits in an internet-facing proxy chain. Exposure is most likely in legacy environments still running Varnish 3.x before 3.0.7, especially where Varnish is stacked with other HTTP intermediaries. The source bundle does not identify affected CPEs beyond Varnish 3.x. Treat as a targeted legacy remediation item. It is not KEV-listed in the supplied data, but old internet-facing Varnish 3.x proxy chains should be upgraded because response splitting can undermine cache and header integrity. Mitigation focus: Upgrade Varnish 3.x deployments to 3.0.7 or later vendor-supported packages.; Apply relevant distribution fixes from Debian, Gentoo, or openSUSE where applicable.; Prioritize internet-facing stacked proxy and cache deployments for remediation..

Prepared: Jun 13, 2026, 14:44 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 25, 2016, 14:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
[varnish-announce] 20150323 Varnish 3.0.7 released.CVE reference · mailing-list, x_refsource_MLIST
GLSA-201607-10CVE reference · vendor-advisory, x_refsource_GENTOO
https://github.com/varnish/Varnish-Cache/commit/29870c8fe95e4e8a672f6f28c5fbe692bea09e9cCVE reference · x_refsource_CONFIRM
https://github.com/varnish/Varnish-Cache/commit/85e8468bec9416bd7e16b0d80cb820ecd2b330c3CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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