CVSS 3.0
7.5 highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2017-12165
High (7.5) in redhat. EPSS 1.9% chance of exploitation in the next 30 days. Fixed in io.undertow:undertow-core 1.3.31, 1.4.17, 2.0.0.Beta1.
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.
Severity
- EPSS
- 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
- CWE
- CWE-444
- Published
- Modified
- Record from
- the NVD, synced
Affected
- redhat:jboss_enterprise_application_platform
- redhat:undertow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5gg7-5wv8-4gcj | Maven | io.undertow:undertow-core | <1.3.31 | 1.3.31 |
| GHSA-5gg7-5wv8-4gcj | Maven | io.undertow:undertow-core | >=1.4.0 <1.4.17 | 1.4.17 |
| GHSA-5gg7-5wv8-4gcj | Maven | io.undertow:undertow-core | >=2.0.0.Alpha1 <2.0.0.Beta1 | 2.0.0.Beta1 |