Red Hat Security AdvisoryRHSA-2026:59559
multicluster engine for Kubernetes v2.9.7 security update
Released 2026-08-25 · Red Hat rating Important · View on Red Hat →
Fixes 31 records
Priority HIGH 78
PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree.
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00608 · Published 2026-07-27 · Partial fix · 8.5.12 CWE-200
Priority HIGH 77
form-data is a library for creating readable multipart/form-data streams.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00669 · Published 2026-06-12 · Partial fix · 2.5.6, 3.0.5 +1 CWE-93
Priority HIGH 75
ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript.
CVSS 4.0HIGH 7.7· Network · No auth · No interaction · EPSS 0.00465 · Published 2026-08-03 · Partial fix · 10.3.1 CWE-20
Priority HIGH 72
js-yaml is a JavaScript YAML parser and dumper.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00585 · Published 2026-07-08 · Partial fix · 3.15.0, 4.3.0 CWE-407
Priority HIGH 70
ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript.
CVSS 4.0MEDIUM 6.9· Network · No auth · No interaction · EPSS 0.00401 · Published 2026-07-27 · Partial fix · 10.2.1 CWE-20
Priority MEDIUM 61
PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree.
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00451 · Published 2026-08-03 · Partial fix · 8.5.19, 8.5.23 CWE-200
Priority MEDIUM 48
The Verify() method for FIDO/U2F security key types ([email protected], [email protected]) did not check the User Presence flag.
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00478 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-862
Priority MEDIUM 47
A flaw was found in the `cluster-proxy-addon` component of Multicluster Engine for Kubernetes.
CVSS 3.1CRITICAL 9.3· Network · No auth · No interaction · EPSS 0.00621 · Published 2026-08-19 · Fixed in 1787173361, 1787276784 +4 CWE-918
Priority MEDIUM 44
A flaw was found in the cluster-curator-controller component.
CVSS 3.1CRITICAL 9.9· Network · Low privileges · No interaction · EPSS 0.00561 · Published 2026-08-12 · Fixed in 1787201612, 1787238383 +4 CWE-269
Priority MEDIUM 44
A flaw was found in the cluster-curator-controller component of multicluster engine (MCE).
CVSS 3.1CRITICAL 9.9· Network · Low privileges · No interaction · EPSS 0.00875 · Published 2026-08-12 · Fixed in 1787201612, 1787238383 +4 CWE-94
Priority MEDIUM 44
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.02044 · Published 2026-08-11 · Fixed in 16.0.5565.1001, 16.0.10417.20198 +1 CWE-502
Priority MEDIUM 44
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.02044 · Published 2026-08-11 · Fixed in 16.0.20326.20190 CWE-502
Priority MEDIUM 43
A flaw was found in the managedcluster-import-controller.
CVSS 3.1CRITICAL 9.9· Network · Low privileges · No interaction · EPSS 0.00488 · Published 2026-08-17 · Fixed in 1787078272, 1787078330 +4 CWE-295
Priority MEDIUM 42
A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller.
CVSS 3.1CRITICAL 9.1· Network · High privileges · No interaction · EPSS 0.00639 · Published 2026-08-05 · Fixed in 1787201612, 1787238383 +3 CWE-266
Priority MEDIUM 40
When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00875 · Published 2026-05-07 · Partial fix · 1.25.10, 1.26.3 CWE-415
Priority LOW 39
find-my-way is a framework-independent HTTP router that internally uses a Radix Tree and supports route parameters and wildcards.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.0046 · Published 2026-07-28 · Partial fix · 9.7.0 CWE-20
Priority LOW 39
An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00473 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-704
Priority LOW 39
The RSA and DSA public key parsers did not enforce size limits on key parameters.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00467 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-347
Priority LOW 36
nanoid (Nano ID) before 3.3.16 and 5.1.16 contains an infinite loop in the customAlphabet and nanoid functions of its non-secure module (nanoid/non-secure).
CVSS 4.0HIGH 8.2· Network · No auth · No interaction · EPSS 0.0033 · Published 2026-07-29 · Partial fix · 5.1.16, 3.3.16 CWE-835
Priority LOW 36
nanoid (Nano ID) before 5.1.6 contains an infinite loop in the customAlphabet and customRandom functions.
CVSS 4.0HIGH 8.2· Network · No auth · No interaction · EPSS 0.00331 · Published 2026-07-29 · Partial fix · 3.3.17, 5.1.6 +1 CWE-835
Priority LOW 36
Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00298 · Published 2026-08-11 · Fixed in 10.0.19045.7663, 10.0.26100.9168 +2 CWE-284
Priority LOW 35
A flaw was found in the clusterclaims-controller component of multicluster engine (MCE).
CVSS 3.1HIGH 7.7· Network · Low privileges · No interaction · EPSS 0.00626 · Published 2026-08-21 · Fixed in 1787196014, 1787239442 +4 CWE-602
Priority LOW 34
nanoid is a secure, URL-friendly, unique string ID generator for JavaScript.
CVSS 3.1HIGH 7.4· Network · No auth · No interaction · EPSS 0.00296 · Published 2026-08-11 · Partial fix · 3.3.12, 5.1.11 CWE-190
Priority LOW 31
A flaw was found in the clusterclaims-controller component of Multicluster Engine (MCE).
CVSS 3.1HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.00352 · Published 2026-08-13 · Fixed in 1787196014, 1787239442 +4 CWE-441
Priority LOW 30
(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries.
CVSS 3.1MEDIUM 6.5· Network · No auth · No interaction · EPSS 0.00591 · Published 2026-06-02 · Partial fix · 1.25.11, 1.26.4
Priority LOW 29
Billy is an interface filesystem abstraction for Go.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00389 · Published 2026-06-01 · Partial fix · 5.9.0, 6.0.0-alpha.1 CWE-674
Priority LOW 28
The HTTP client drops sensitive headers after following a cross-domain redirect.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.0071 · Published 2025-01-28 · Partial fix · 1.22.11, 1.23.5 +1
Priority LOW 27
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00223 · Published 2026-05-22 · Partial fix · 0.55.0 CWE-1021
Priority LOW 27
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00223 · Published 2026-05-22 · Partial fix · 0.55.0 CWE-1021
Priority LOW 26
A flaw was found in the provider-credential-controller component of multicluster-engine (MCE).
CVSS 3.1MEDIUM 5.8· Network · Low privileges · User interaction · EPSS 0.00399 · Published 2026-08-12 · Fixed in 1787176886, 1787239595 +4 CWE-639
Priority LOW 19
Due to the usage of a variable time instruction in the assembly implementation of an internal function, a small number of bits of secret scalars are leaked on the ppc64le architecture.
CVSS 3.1MEDIUM 4.0· Local · No auth · No interaction · EPSS 0.0029 · Published 2025-02-06 · Partial fix · 1.22.12, 1.23.6 +1