Detections
Analytics

RHEL 8 : go-toolset:rhel8 (RHSA-2026:38995)

high Nessus Plugin ID 326506

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:38995 advisory.

 Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang.

 Security Fix(es):

 * golang.org/x/net/idna: golang: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)

 * crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145)

 * os: golang: Go os.Root: Symlink following vulnerability allows directory traversal (CVE-2026-39822)

 Bug Fix(es) and Enhancement(s):

 * Update Go to version 1.26.5+1 [rhel-8.10.z] (JIRA:RHEL-193478)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:38995

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2480756

https://bugzilla.redhat.com/show_bug.cgi?id=2484207

https://bugzilla.redhat.com/show_bug.cgi?id=2498152

https://issues.redhat.com/browse/RHEL-193478

http://www.nessus.org/u?1a88dccb

Plugin Details

Severity: High

ID: 326506

File Name: redhat-RHSA-2026-38995.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/13/2026

Updated: 7/13/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.47

Vendor

Vendor Severity: Important

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-2026-39821

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:golang-race, p-cpe:/a:redhat:enterprise_linux:golang-docs, p-cpe:/a:redhat:enterprise_linux:golang-src, p-cpe:/a:redhat:enterprise_linux:delve, cpe:/o:redhat:rhel_eus:8.10, p-cpe:/a:redhat:enterprise_linux:golang-tests, p-cpe:/a:redhat:enterprise_linux:go-toolset, p-cpe:/a:redhat:enterprise_linux:golang, p-cpe:/a:redhat:enterprise_linux:golang-bin, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:golang-misc

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/13/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-27145, CVE-2026-39821, CVE-2026-39822

CWE: 1289, 59, 606

RHSA: 2026:38995