CVE-2017-7559
In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666…
- 6.1MediumCVSS base score
- 1.9%Exploitation in 30 daysEPSS · top 20% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.
Timeline
ID reserved
By redhat
- 9 months later
· 9 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.9% · top 20% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Affected products
- affected 2.x before 2.0.0.Alpha2
- affected 1.4.x before 1.4.17.Final
- affected 1.3.x before 1.3.31.Final
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenio.undertow:undertow-coreGHSA-rj76-h87p-r3wf (opens in a new tab)
References
11
- RHSA-2018:1322 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7559 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:0002 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:3458 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://issues.jboss.org/browse/UNDERTOW-1251 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:0004 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:3455 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:3456 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:0003 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:0005 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:3454 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-5183 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-rj76-h87p-r3wf (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-7559)Record last updated .