CVE-2026-102479

Source
https://cve.org/CVERecord?id=CVE-2026-102479
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102479.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-102479
Aliases
  • GHSA-ch7p-g5pm-3gqx
Published
2026-10-14T18:43:54Z
Modified
2026-10-15T10:47:27Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
[none]
Details

In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the Vert.x HTTP/1.x decoder uses a canonicalization for well known HTTP headers, the canonicalization process interprets well crafted headers as headers of this list, allowing for instance Content-Xength to be interpeted as Content-Length.

This can be exploited for request smuggling purpose.

The impacted component is io.vertx:vertx-core.

Database specific
{
    "cna_assigner":  "eclipse",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102479.json"
}
References

Affected packages

Git / github.com/eclipse-vertx/vert.x

Affected ranges

Type
GIT
Repo
https://github.com/eclipse-vertx/vert.x
Events
Database specific
Show details
{
    "extracted_events":  [
        {
            "introduced":  "5.0.0"
        },
        {
            "last_affected":  "5.0.12"
        },
        {
            "introduced":  "5.1.0"
        },
        {
            "last_affected":  "5.1.9"
        },
        {
            "introduced":  "5.2.0"
        },
        {
            "last_affected":  "5.2.0"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

5.*
5.0.0
5.0.1
5.0.10
5.0.11
5.0.12
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.7
5.0.8
5.0.9
5.2.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102479.json"