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RHEL 9 : Red Hat OpenStack Platform 17.1 security advisory (Important) (RHSA-2026:90329)
high Nessus Plugin ID 372143
Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:90329 advisory.Red Hat OpenStack Platform provides the facilities for building, deploying and monitoring a private or public infrastructure-as-a-service (IaaS) cloud running on commonly available physical hardware.
Security Fix(es):
* golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)
* net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726)
* Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)
* golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145)
* crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
* golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)
* golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)
* golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)
* golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)
* golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)
* golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)
* golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)
* golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)
* etcd: Denial of Service via unbounded TLS handshake goroutines (CVE-2026-73500)
* net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page 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 collectd-libpod-stats, collectd-sensubility and / or etcd packages.See Also
https://access.redhat.com/errata/RHSA-2026:90329
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2434432
https://bugzilla.redhat.com/show_bug.cgi?id=2445356
https://bugzilla.redhat.com/show_bug.cgi?id=2456338
https://bugzilla.redhat.com/show_bug.cgi?id=2456339
https://bugzilla.redhat.com/show_bug.cgi?id=2467822
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=2515007
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=2548344
Plugin Details
Severity: High
ID: 372143
File Name: redhat-RHSA-2026-90329.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 10/26/2026
Updated: 10/26/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.3
Percentile: 98.16
Vendor
Vendor Severity: Important
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-2026-33811
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: 8.7
Threat Score: 6.6
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-73500
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:collectd-libpod-stats, p-cpe:/a:redhat:enterprise_linux:collectd-sensubility, p-cpe:/a:redhat:enterprise_linux:etcd
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: 10/26/2026
Vulnerability Publication Date: 1/22/2026
Reference Information
CVE: CVE-2025-61726, CVE-2026-111943, CVE-2026-25679, CVE-2026-27145, CVE-2026-32280, CVE-2026-32283, CVE-2026-33811, CVE-2026-33818, CVE-2026-39821, CVE-2026-56853, CVE-2026-56858, CVE-2026-56860, CVE-2026-56862, CVE-2026-73500, CVE-2026-78669