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RockyLinux 8 : osbuild-composer (RLSA-2026:66016)

high Nessus Plugin ID 344532

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Synopsis

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

Description

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:66016 advisory.

 * golang-fips: Golang FIPS zeroed buffer (CVE-2024-9355)

 * golang: net/http: net/http: sensitive headers incorrectly sent after cross-domain redirect (CVE-2024-45336)

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

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

 * encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)

 * net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)

 * net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)

 * html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)

 * crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)

 * encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)

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=2315719

https://bugzilla.redhat.com/show_bug.cgi?id=2341751

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

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

https://bugzilla.redhat.com/show_bug.cgi?id=2515815

https://bugzilla.redhat.com/show_bug.cgi?id=2515820

https://bugzilla.redhat.com/show_bug.cgi?id=2515827

https://bugzilla.redhat.com/show_bug.cgi?id=2515838

https://bugzilla.redhat.com/show_bug.cgi?id=2515839

https://bugzilla.redhat.com/show_bug.cgi?id=2515840

https://errata.rockylinux.org/RLSA-2026:66016

Plugin Details

Severity: High

ID: 344532

File Name: rocky_linux_RLSA-2026-66016.nasl

Version: 1.1

Type: Local

Published: 9/10/2026

Updated: 9/10/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.83

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-39820

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: High

Base Score: 7.6

Threat Score: 5

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2024-9355

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:osbuild-composer-core-debuginfo, p-cpe:/a:rocky:linux:osbuild-composer-core, p-cpe:/a:rocky:linux:osbuild-composer-debuginfo, p-cpe:/a:rocky:linux:osbuild-composer-debugsource, p-cpe:/a:rocky:linux:osbuild-composer-worker-debuginfo, p-cpe:/a:rocky:linux:osbuild-composer-worker, p-cpe:/a:rocky:linux:osbuild-composer

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: 9/10/2026

Vulnerability Publication Date: 10/1/2024

Reference Information

CVE: CVE-2024-45336, CVE-2024-9355, CVE-2026-33818, CVE-2026-39820, CVE-2026-39821, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862

IAVB: 2025-B-0010-S, 2026-B-0120, 2026-B-0234