RHEL 9 : podman (RHSA-2026:69961)

high Nessus Plugin ID 349104

Synopsis

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

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:69961 advisory.

The podman tool manages pods, container images, and containers. It is part of the libpod library, which is for applications that use container pods. Container pods is a concept in Kubernetes.

Security Fix(es):

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

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

* podman: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)

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

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

* podman: Quadlet install --replace non-truncating write retains removed host-access directives (CVE-2026-19730)

* podman: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses (CVE-2026-39830)

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

* podman: moby/go-archive: Arbitrary file write via link following in tar extraction (CVE-2026-17106)

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 RHEL podman package based on the guidance in RHSA-2026:69961.

Plugin Details

Severity: High

ID: 349104

File Name: redhat-RHSA-2026-69961.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/22/2026

Updated: 9/22/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.28

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-56858

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

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

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

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 6.2

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-17106

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, cpe:/o:redhat:rhel_eus:9.8, p-cpe:/a:redhat:enterprise_linux:podman-docker, p-cpe:/a:redhat:enterprise_linux:podman-plugins, p-cpe:/a:redhat:enterprise_linux:podman-remote, p-cpe:/a:redhat:enterprise_linux:podman-tests, p-cpe:/a:redhat:enterprise_linux:podman

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/22/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-17106, CVE-2026-19730, CVE-2026-33818, CVE-2026-39830, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862

CWE: 1050, 459, 59, 770, 772, 776, 79

RHSA: 2026:69961

Detections

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