Detections
Analytics

Echo: patch: security update to 2.8-2+e5

medium Tenable Self-Hosted Container Security Plugin ID 464506

Description

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

 - GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (single block of
 changes in diff) line offsets in unified-diff input. A specially crafted patch can specify an extremely
 large line number, causing the application to enter an effectively infinite processing loop while
 attempting to locate the requested position. This results in excessive CPU consumption and prevents the
 process from completing. An attacker can trigger this behavior by supplying a malicious patch file,
 causing the utility to become unresponsive and require manual termination. This issue has been fixed in
 the commit faba04ef4f2b410257f76c1b9dc85e350929c4b9 (CVE-2026-56289)

Solution

Update the patch library and its related packages to version 2.8-2+e5 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-56289

Plugin Details

Severity: Medium

ID: 464506

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.62

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-56289

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.6

Threat Score: 1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/10/2026

Vulnerability Publication Date: 7/9/2026

Reference Information

CVE: CVE-2026-56289