RockyLinux 9 : buildah (RLSA-2026:70640)

medium Nessus Plugin ID 349899

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-2026:70640 advisory.

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

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

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

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

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

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.

Plugin Details

Severity: Medium

ID: 349899

File Name: rocky_linux_RLSA-2026-70640.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 9/24/2026

Updated: 9/24/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.28

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-15789

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:H/A:N

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 4.5

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:buildah-debuginfo, p-cpe:/a:rocky:linux:buildah-debugsource, p-cpe:/a:rocky:linux:buildah-tests-debuginfo, p-cpe:/a:rocky:linux:buildah-tests, p-cpe:/a:rocky:linux:buildah

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2026

Vulnerability Publication Date: 7/21/2026

Reference Information

CVE: CVE-2025-11395, CVE-2026-15789, CVE-2026-33818, CVE-2026-56853, CVE-2026-56855, CVE-2026-56858, CVE-2026-56860, CVE-2026-56862

IAVB: 2026-B-0234

Detections

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