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RockyLinux 9 : golang (RLSA-2026:22121)

medium Nessus Plugin ID 339685

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:22121 advisory.

 * net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499)

 * cmd/go: golang: Go command (cmd/go): Integrity bypass due to checksum validation flaw via malicious module proxy (CVE-2026-42501)

 * html/template: golang: Go html/template: Cross-Site Scripting via improper URL escaping in meta tag content (CVE-2026-39823)

 * cmd/go: golang: Go 'go bug' command: Arbitrary file overwrite via symlink attack (CVE-2026-39819)

 * net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame (CVE-2026-33814)

 * net/mail: golang: Go net/mail: Denial of Service via crafted email inputs (CVE-2026-39820)

 * net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)

 * net/http/httputil: golang: net/http/httputil: ReverseProxy forwards hidden query parameters, potentially bypassing security controls (CVE-2026-39825)

 * cmd/go: golang: Go tool pack: Arbitrary file write via malicious archive extraction (CVE-2026-39817)

 * html/template: golang: html/template: Cross-site scripting due to incorrect script tag escaping (CVE-2026-39826)

 * net: golang: Go net package: Denial of Service via NUL byte in Dial and LookupPort on Windows (CVE-2026-39836)

Tenable has extracted the preceding description block directly from the RockyLinux 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://bugzilla.redhat.com/show_bug.cgi?id=2467809

https://bugzilla.redhat.com/show_bug.cgi?id=2467810

https://bugzilla.redhat.com/show_bug.cgi?id=2467811

https://bugzilla.redhat.com/show_bug.cgi?id=2467813

https://bugzilla.redhat.com/show_bug.cgi?id=2467815

https://bugzilla.redhat.com/show_bug.cgi?id=2467820

https://bugzilla.redhat.com/show_bug.cgi?id=2467822

https://bugzilla.redhat.com/show_bug.cgi?id=2467823

https://bugzilla.redhat.com/show_bug.cgi?id=2467825

https://bugzilla.redhat.com/show_bug.cgi?id=2467826

https://bugzilla.redhat.com/show_bug.cgi?id=2467827

https://errata.rockylinux.org/RLSA-2026:22121

Plugin Details

Severity: Medium

ID: 339685

File Name: rocky_linux_RLSA-2026-22121.nasl

Version: 1.1

Type: Local

Published: 8/26/2026

Updated: 8/26/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.94

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-39817

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:go-toolset, p-cpe:/a:rocky:linux:golang-bin, p-cpe:/a:rocky:linux:golang-docs, p-cpe:/a:rocky:linux:golang-misc, p-cpe:/a:rocky:linux:golang-race, p-cpe:/a:rocky:linux:golang-src, p-cpe:/a:rocky:linux:golang-tests, p-cpe:/a:rocky:linux:golang

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/26/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-33811, CVE-2026-33814, CVE-2026-39817, CVE-2026-39819, CVE-2026-39820, CVE-2026-39823, CVE-2026-39825, CVE-2026-39826, CVE-2026-39836, CVE-2026-42499, CVE-2026-42501

IAVB: 2026-B-0120