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CVE-2017-7656

In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance…

High7.5EPSS 6.1%
Published
Updated
Reserved
Assigned by
eclipse

Description

In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), HTTP/0.9 is handled poorly. An HTTP/1 style request line (i.e. method space URI space version) that declares a version of HTTP/0.9 was accepted and treated as a 0.9 request. If deployed behind an intermediary that also accepted and passed through the 0.9 version (but did not act on it), then the response sent could be interpreted by the intermediary as HTTP/1 headers. This could be used to poison the cache if the server allowed the origin client to generate arbitrary content in the response.

Scores

CVSS scores of CVE-2017-7656, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0High7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS (exploitation in 30 days)
6.1% · top 6.6% of all CVEs (3 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • The Eclipse Foundation · Eclipse Jetty

    • affected unspecified – ≤ 9.2.0
    • affected 9.3.0 – < unspecified
    • affected unspecified – < 9.3.24
    • affected 9.4.0 – < unspecified
    • affected unspecified – < 9.4.11

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (12)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .