CVE-2026-26939

A flaw was found in Kibana. An authenticated attacker with rule management privileges could exploit a missing authorization vulnerability in the server-side Detection Rule Management. This allows the attacker to configure unauthorized endpoint response actions, such as host isolation, process...

EUVD-2026-13610

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtIDLETIMER: reject rev0 reuse of ALARM timer labels IDLETIMER revision 0 rules reuse existing timers by label and always call modtimer on timer-timer. If the label was created first by revision 1 with XTIDLETIMERALARM...

UBUNTU-CVE-2026-23274

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtIDLETIMER: reject rev0 reuse of ALARM timer labels IDLETIMER revision 0 rules reuse existing timers by label and always call modtimer on timer-timer. If the label was created first by revision 1 with XTIDLETIMERALARM...

CVE-2026-32811

This CVE affects Heimdall (cloud-native Identity Aware Proxy/Access Control). In envoy gRPC decision API mode, versions 0.7.0-alpha through 0.17.10 suffer from incorrect encoding of the URL query string when constructing the Path, causing parameters like /mypath?foo=bar to be escaped to /mypath%3...

CVE-2026-32811 Heimdall: Path received via Envoy gRPC corrupted when containing query string

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. When using Heimdall in envoy gRPC decision API mode with versions 0.7.0-alpha through 0.17.10, wrong encoding of the query URL string allows rules with non-wildcard path expressions to be bypassed. Envoy splits t...

CVE-2026-32811 Heimdall: Path received via Envoy gRPC corrupted when containing query string

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. When using Heimdall in envoy gRPC decision API mode with versions 0.7.0-alpha through 0.17.10, wrong encoding of the query URL string allows rules with non-wildcard path expressions to be bypassed. Envoy splits t...

PT-2026-26778

Name of the Vulnerable Software and Affected Versions Ory Oathkeeper affected versions not specified Description Ory Oathkeeper is susceptible to an authorization bypass due to a path traversal issue. An attacker can potentially bypass security checks by crafting URLs with path traversal sequence...

EUVD-2026-13143

Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspension via CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs. This requires an...

CVE-2026-26939

Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspension via CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs. This requires an...

You have to invite them in

Welcome to this week's edition of the Threat Source newsletter. I found myself watching the Oscars ceremony in its entirety for the first time in a few years. I'm in the U.K., so I watched it the following day. With next week's Year in Review launch looming and several pieces of content still to...

Missing Authorization

Overview kibana is an open source Apache Licensed, browser-based analytics and search dashboard for Elasticsearch. Affected versions of this package are vulnerable to Missing Authorization in the Detection Rule Management. An attacker can perform unauthorized system actions, such as host isolatio...

CVE-2026-26939

CVE-2026-26939 affects Kibana’s server-side Detection Rule Management. Missing Authorization (CWE-862) could allow an authenticated attacker with rule management privileges to configure Unauthorized Endpoint Response Actions (host isolation, process termination, process suspension). Root cause an...

CVE-2026-26939 Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration

Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspension via CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs. This requires an...

CVE-2026-26939

Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspension via CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs. This requires an...

CVE-2026-26939 Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration

Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspension via CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs. This requires an...

CVE-2026-26939 Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration

Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspension via CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs. This requires an...

Kibana 8.19.12, 9.2.6, 9.3.1 Security Update (ESA-2026-19)

Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspensio...

Elastic Kibana 安全漏洞

Elastic Kibana is a data visualization dashboard software provided by the Elastic company. There is a security vulnerability in Elastic Kibana, which stems from an lack of authorization in server-side rule management. This vulnerability could allow authenticated attackers to configure unauthorize...

PT-2026-26324

Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspension via CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs. This requires an...

Heimdall: Path received via Envoy gRPC corrupted when containing query string

Summary When using heimdall in envoy gRPC decision API mode, wrong encoding of the query URL string allows rules with non-wildcard path expressions to be bypassed. The HTTP based decision API is NOT affected, and proxy mode is NOT affected either. Note: The issue can only lead to unintended acces...