Detections
Analytics

SCA: security update for io.undertow:undertow-core (GHSA-8v4x-mgvp-p658)

critical Tenable Self-Hosted Container Security Plugin ID 478364

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted
 requests where header names are parsed differently by Undertow compared to upstream proxies. This
 discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially
 bypassing security controls and accessing unauthorized resources. (CVE-2026-28368)

Solution

Update the io.undertow:undertow-core library and its related packages to version 2.2.40.Final or later.

See Also

https://github.com/advisories/GHSA-8v4x-mgvp-p658

Plugin Details

Severity: Critical

ID: 478364

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 11/5/2026

Updated: 11/5/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.59

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-28368

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/27/2026

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2026-28368

cwe: CWE-444