What’s Vulnerable › Vulnerabilities

CVE-2018-12537

• Severity: medium (CVSS 5.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-08-14 · updated 2026-06-17
• Weakness: CWE-93

Description

In Eclipse Vert.x version 3.0 to 3.5.1, the HttpServer response headers and HttpClient request headers do not filter carriage return and line feed characters from the header value. This allow unfiltered values to inject a new header in the client request or server response.

Affected products

• Eclipse Foundation Eclipse Vert.x: from 3.0.0 through 3.5.1

References

• https://access.redhat.com/errata/RHSA-2018:2371
• https://access.redhat.com/errata/RHSA-2018:3768
• https://bugs.eclipse.org/bugs/show_bug.cgi?id=536038
• https://bugzilla.redhat.com/show_bug.cgi?id=1591072
• https://github.com/eclipse/vert.x/commit/1bb6445226c39a95e7d07ce3caaf56828e8aab72
• https://github.com/eclipse/vert.x/issues/2470
• https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2018-021_vertx.txt
• https://access.redhat.com/errata/RHSA-2018:2371
• https://access.redhat.com/errata/RHSA-2018:3768
• https://bugs.eclipse.org/bugs/show_bug.cgi?id=536038
• https://bugzilla.redhat.com/show_bug.cgi?id=1591072
• https://github.com/eclipse/vert.x/commit/1bb6445226c39a95e7d07ce3caaf56828e8aab72

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