This can be exploited for request smuggling purpose.
The impacted component is io.vertx:vertx-core.
Analysis and contextual insights are available on OpenCVE Cloud.
No solution or workaround provided in the CVE record.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Tue, 20 Oct 2026 21:45:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Eclipse
Eclipse vert.x |
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| CPEs | cpe:2.3:a:eclipse:vert.x:*:*:*:*:*:*:*:* cpe:2.3:a:eclipse:vert.x:5.2.0:*:*:*:*:*:*:* |
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| Vendors & Products |
Eclipse
Eclipse vert.x |
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| Metrics |
cvssV3_1
|
Sat, 17 Oct 2026 15:30:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Sat, 17 Oct 2026 01:15:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Vert.x HTTP/1.x Decoder Header Canonicalization Allows Request Smuggling | |
| Weaknesses | CWE-113 CWE-20 |
Fri, 16 Oct 2026 21:30:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-444 |
Thu, 15 Oct 2026 16:00:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Vert.x HTTP/1.x Decoder Header Canonicalization Allows Request Smuggling | |
| Weaknesses | CWE-113 CWE-20 |
Wed, 14 Oct 2026 21:00:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: eclipse
Published:
Updated: 2026-10-16T18:23:47.949Z
Reserved: 2026-09-29T08:57:24.202Z
Link: CVE-2026-102479
Updated: 2026-10-16T18:23:40.298Z
Status : Analyzed
Published: 2026-10-14T19:17:05.313
Modified: 2026-10-20T19:31:59.240
Link: CVE-2026-102479
No data.
OpenCVE Enrichment
Updated: 2026-10-17T03:00:14Z
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CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')