CVE-2026-57438 Nokogiri: Possible Use-After-Free in XInclude Processing

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, XInclude substitution performed by Nokogiri::XML::Nodedoxinclude replaced each in place, freeing the include node along with its children such as and its descendants and any namespaces declared on...

CVE-2026-57438 Nokogiri: Possible Use-After-Free in XInclude Processing

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, XInclude substitution performed by Nokogiri::XML::Nodedoxinclude replaced each in place, freeing the include node along with its children such as and its descendants and any namespaces declared on...

CVE-2026-53077

The vulnerability CVE-2026-53077 affects the Linux kernel RDS/IB code: it restricted usage to the initial network namespace, with the non-initial namespaces not supported and the existing code likely malfunctioning. Multiple advisories note the issue has been resolved/patched (e.g., Debian/Ubuntu...

EUVD-2026-38577

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.21 and 3.7.5, there is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declare multiple WRR backendRefs, Traefik evaluates the allowlis...

CVE-2026-54761 Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.21 and 3.7.5, there is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declare multiple WRR backendRefs, Traefik evaluates the allowlis...

CVE-2026-54761

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.21 and 3.7.5, there is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declare multiple WRR backendRefs, Traefik evaluates the allowlis...

CVE-2026-54761

Traefik vulnerability CVE-2026-54761 affects the Kubernetes Gateway provider: prior to 3.6.21 and 3.7.5, the crossProviderNamespaces allowlist is checked against backendRef.namespace instead of the HTTPRoute’s own namespace, enabling an attacker in a non-allowlisted namespace to reference interna...

CVE-2026-54761 Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.21 and 3.7.5, there is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declare multiple WRR backendRefs, Traefik evaluates the allowlis...

CVE-2026-52909

A flaw was found in the Linux kernel, specifically within the IPv6 Virtual Tunnel Interface ip6vti component. This vulnerability occurs because a critical flag, netnsimmutable, is not properly set on a specific network device ip6vti0 when it is initialized. This oversight could allow the device t...

GHSA-MWR2-WMGP-CRJ6 OpenBao's System Backend allows Unauthorized Management of the containing Namespace

Summary A user that is granted namespace management /sys/namespaces capabilities within a non-root namespace "the victim namespace" can abuse special handling of the literal path "root" in namespace path canonicalization to manage the victim namespace itself. Details Several endpoints under...

Exploit for CVE-2026-54761

CVE-2026-54761: Traefik Kubernetes Gateway crossProviderNamesp...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix ref leak when switching zones When switching zones or network namespaces without performing a ct clear between them, a reference to the old ct entry is still leaked. This occurs because tcfctskbnfctcached...

GHSA-MW9R-P8XP-WX96 Strimzi: Cross-namespace privilege escalation via `Kafka.spec.entityOperator`

Impact Having the Topic and User operators to watch different namespaces than the one where the Kafka cluster is deployed, is a fully documented feature. When the watchedNamespace field is used within the Topic or User operator as part of the Kafka.spec.entityOperator field, the Cluster Operator...

Capsule: Incomplete fix of CVE-2026-30963: singular/plural typo leaves namespaces/finalize unprotected

Summary Capsule v0.13.2 webhook rules contain namespace/finalize singular instead of namespaces/finalize plural. K8s requires plural. The finalize defense from CVE-2026-30963 fix is absent. Details PUT to /api/v1/namespaces//finalize has resource=namespaces plural. The singular rule never matches...

GHSA-GWXR-7H77-7777 Capsule: Incomplete fix of CVE-2026-30963: singular/plural typo leaves namespaces/finalize unprotected

Summary Capsule v0.13.2 webhook rules contain namespace/finalize singular instead of namespaces/finalize plural. K8s requires plural. The finalize defense from CVE-2026-30963 fix is absent. Details PUT to /api/v1/namespaces//finalize has resource=namespaces plural. The singular rule never matches...

Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services

Summary There is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declare multiple WRR backendRefs, Traefik evaluates the allowlist against the target backendRef.namespace instead of the route's own...

GHSA-3G6V-2R68-PRFC Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services

Summary There is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declare multiple WRR backendRefs, Traefik evaluates the allowlist against the target backendRef.namespace instead of the route's own...

PT-2026-50495

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 3.6.21 Traefik versions prior to 3.7.5 Description An issue exists in the Kubernetes Gateway provider regarding the crossProviderNamespaces allowlist. When HTTPRoute rules declare multiple backendRefs Weighted Round...

PT-2026-50604

Name of the Vulnerable Software and Affected Versions Capsule version 0.13.2 Description A typo in the webhook rules of the software causes a failure in the defense mechanism for the namespaces/finalize subresource. The configuration uses the singular namespace/finalize instead of the plural...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via improper handling of namespaced elements and attributes during template compilation and sanitization. An attacker can execute arbitrary JavaScript in the user's browser by injecting specially crafted templat...