CVE-2017-7656

mediumpriority · track · 32EPSS 0.063 · 94 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

6.33% (94th) EPSS

CVSS 5 · medium

Is it mine?

31 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.17.2highAV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-444USCWE-444USCWE-444USCWE-444US

affected products (31)

Products and version ranges known to be affected.

Atlassian Bamboo < 9.2.7all versionscert_bundDEcpe:/a:atlassian:bamboo:9.2.7
Atlassian Bitbucket < 8.11.6all versionscert_bundDEcpe:/a:atlassian:bitbucket:8.11.6
Atlassian Bitbucket < 8.12.4all versionscert_bundDEcpe:/a:atlassian:bitbucket:8.12.4
Atlassian Bitbucket < 8.13.3all versionscert_bundDEcpe:/a:atlassian:bitbucket:8.13.3
Atlassian Bitbucket < 8.14.2all versionscert_bundDEcpe:/a:atlassian:bitbucket:8.14.2
Atlassian Bitbucket < 8.9.7all versionscert_bundDEcpe:/a:atlassian:bitbucket:8.9.7
Atlassian Confluence < 7.19.17all versionscert_bundDEcpe:/a:atlassian:confluence:7.19.17
Atlassian Confluence < 8.3.4all versionscert_bundDEcpe:/a:atlassian:confluence:8.3.4
Atlassian Confluence < 8.4.5all versionscert_bundDEcpe:/a:atlassian:confluence:8.4.5
Atlassian Confluence < 8.5.4all versionscert_bundDEcpe:/a:atlassian:confluence:8.5.4
Atlassian Confluence < 8.6.2all versionscert_bundDEcpe:/a:atlassian:confluence:8.6.2
Atlassian Confluence < 8.7.1all versionscert_bundDEcpe:/a:atlassian:confluence:8.7.1
Atlassian Jira Software < 9.4.13all versionscert_bundDEcpe:/a:atlassian:jira_software:9.4.13
Atlassian Jira Software Service Management < 4.20.28all versionscert_bundDEcpe:/a:atlassian:jira_software:service_management__4.20.28
Atlassian Jira Software Service Management < 5.4.12all versionscert_bundDEcpe:/a:atlassian:jira_software:service_management__5.4.12
The Eclipse Foundation Eclipse Jetty≤ unspecified ≤9.2.0enisa_euvdEU
The Eclipse Foundation Eclipse Jetty9.3.0 → unspecifiedenisa_euvdEU
The Eclipse Foundation Eclipse Jetty9.4.0 → unspecifiedenisa_euvdEU
The Eclipse Foundation Eclipse Jettyunspecified → 9.3.24enisa_euvdEU
The Eclipse Foundation Eclipse Jettyunspecified → 9.4.11enisa_euvdEU

showing 20 of 31

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2024-0231Kwetsbaarheden verholpen in Atlassian productenNL2024-05-22csaf · ncsc_nlNL
Atlassian heeft kwetsbaarheden verholpen in diverse producten, zoals Jira, Confluence en Bitbucket.
WID-SEC-W-2023-2993Atlassian Bamboo, Atlassian Bitbucket, Atlassian Confluence and Atlassian Jira Software: Mehrere SchwachstellenDeutsch2023-11-21csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Atlassian Bamboo, Atlassian Bitbucket, Atlassian Confluence und Atlassian Jira Software ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen oder einen Cross-Site-Scripting-Angriff durchzuführen.
GHSA-84q7-p226-4x5wJetty vulnerable to cache poisoning due to inconsistent HTTP request handling (HTTP Request Smuggling)2018-10-19ghsa · osvUS
Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), contain an HTTP Request Smuggling Vulnerability that can result in cache poisoning.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl osv NVD CVE.org MITRE

published 2018-06-26modified 2026-06-17

references (51)

External citations — patches, advisories, analysis.

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