SCA: security update for io.undertow:undertow-parent (GHSA-3gv6-g396-9v4r)

critical Tenable Self-Hosted Container Security Plugin ID 446635

Description

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

- A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending `\r\r\r` as a
header block terminator. This can be used for request smuggling with certain proxy servers, such as older
versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer, potentially leading
to unauthorized access or manipulation of web requests. (CVE-2026-28367)

Solution

There is no known solution at this time.

See Also

https://github.com/advisories/GHSA-3gv6-g396-9v4r

Plugin Details

Severity: Critical

ID: 446635

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/31/2026

Updated: 8/31/2026

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-2026-28367

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-2026-28367

cwe: CWE-444