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CVE-2017-12165
It was discovered that Undertow before 1.4.17, 1.3.31 and 2.0.0 processes http request headers with unusual whitespaces which can cause…
Low2.6EPSS 1.9%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
It was discovered that Undertow before 1.4.17, 1.3.31 and 2.0.0 processes http request headers with unusual whitespaces which can cause possible http request smuggling.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | Low2.6 | CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N |
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 1.9% · top 21% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.6.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenio.undertow:undertow-coreGHSA-5gg7-5wv8-4gcj (opens in a new tab)
References (10)
- RHSA-2018:1322 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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
- RHSA-2018:0004 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12165 (opens in a new tab)x_refsource_CONFIRMx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-5gg7-5wv8-4gcj (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2017-12165)Record last updated .