In Eclipse Jetty Server, versions 9.2.x and older, 9.3.x (all non HTTP/1.x configurations), and 9.4.x (all HTTP/1.x configurations), when presented with two content-lengths headers, Jetty ignored the second. When presented with a content-length and a chunked encoding header, the content-length was ignored (as per RFC 2616). If an intermediary decided on the shorter length, but still passed on the longer body, then body content could be interpreted by Jetty as a pipelined request. If the intermediary was imposing authorization, the fake pipelined request would bypass that authorization.
CVE-2017-7658
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 8.6%, top 7% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 97.3%
- KEV
- Not listed
Published
June 26, 2018
Last Modified
November 21, 2024
Advisory Details (10)
Auto-updated Jun 7, 2026535669 – (CVE-2017-7658) Jetty: CVE Request: Too Tolerant Parser, Double Content-Length + Transfer-Encoding + Whitespace
https://bugs.eclipse.org/bugs/show_bug.cgi?id=535669Vendor Advisories for CVE-2017-7658(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | agent-bond | 2020-09-17 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.eclipse.jetty:jetty-server | 9.4.0.v20161208 ... 9.4.9.v20180320 (23 versions) | 9.4.11.v20180605 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 35× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
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- 2026-07-04 05:56 UTCOSV refresh
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- 2026-06-21 01:57 UTCEPSS rescore
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- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-15 17:43 UTCOSV refresh
- 2026-06-13 22:58 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
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- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 06:16 UTCEG score recompute
- 2026-05-28 06:16 UTCVendor advisory
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 17:16 UTCOSV refresh
Frequently asked(5)
What is CVE-2017-7658?
When was CVE-2017-7658 disclosed?
Is CVE-2017-7658 actively exploited?
What is the CVSS score of CVE-2017-7658?
How do I remediate CVE-2017-7658?
Dependency Blast Radius
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