Dashboard / CVE-2026-102479

CVE-2026-102479

HIGH
MEDIUM Priority: 0.03 BB Relevance: 77/100
Published: 2026-10-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: None
VI: High
VA: None

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.

Weakness Classification (1)

Affected Software (10)

VendorProductVersion
Eclipse Foundation Eclipse Vert.x 5.0.0
Eclipse Foundation Eclipse Vert.x 5.1.0
Eclipse Foundation Eclipse Vert.x 5.2.0
Eclipse Foundation Eclipse Vert.x 5.0.0
Eclipse Foundation Eclipse Vert.x 5.1.0
Eclipse Foundation Eclipse Vert.x 5.2.0
eclipse vert.x 5.0.0 – 5.1.10
eclipse vert.x 5.2.0
eclipse vert.x 5.0.0 – 5.1.10
eclipse vert.x 5.2.0

References & Advisories (3)

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.34%
Raw Score 0.003350
Percentile 26.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00335
2026-10-28
0.00270

Intelligence Sources

mitre ref →
nvd ref →

External Links