Elastic Stack 5.5 Security update

Elasticsearch X-Pack Security user credentials disclosure ESA-2017-10 Elasticsearch X-Pack Security versions 5.0.0 to 5.4.3, when enabled, can result in the Elasticsearch nodes API leaking sensitive configuration information, such as the paths and passphrases of SSL keys that were configured as...

Logstash 5.0.1 released with a security patch

Hi all, we would like to announce that Logstash 5.0.1 has been released with an important security patch. Prior to Logstash version 5.0.1, Elasticsearch Output plugin when updating connections after sniffing, would log to file HTTP basic auth credentials. We advise our users using Logstash and...

Logstash 2.3.2 Vulnerability with Netflow codec plugin

Hi all, we've published ESA-2016-06 for a vulnerability in netflow codec plugin for Logstash 2.3.2. Thanks to Jorrit Folmer maintainer of netflow codec for reporting and fixing this issue. Details below: Vulnerability Summary: In Logstash versions prior to 2.3.3, when using the Netflow Codec...

Kibana 4.4.2, 4.3.3, 4.1.6 - Updated node.js versions due to upstream vulnerabilities

Same deal as last month, but we've bumped all 3 version to node v4.3.2 to cover security issues in node.js. You can read their maintenance announcement here: https://nodejs.org/en/blog/release/v4.3.2/ Check out the blog post with release notes or grab the latest version...

Kibana 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-72)

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service Uncontrolled Resource Consumption CWE-400 in Kibana can lead to denial of service via Excessive Allocation CAPEC-130. A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning...

Protect your data from ransom attacks

I wanted to bring attention to two blog posts we have done recently in response to the recent set of data ransom attacks affecting Elasticsearch and other systems. The two are: For Elasticsearch: Protecting Against Attacks that Hold Your Data for Ransom For Kibana: Guarding Kibana from Data...

Kibana 5.0.2 released with a fix for improper authentication

With X-Pack installed, operations in the Advanced Settings panel of the Management tab and operations from the short URL service were performed as the "Kibana Server" user regardless of the user that is currently authenticated. As a result, a user that was defined as read-only could make changes ...

Kibana 4.6.2 released with a security fix for an XSS vulnerability

Today, we've published Kibana 4.6.2 as a security release with a fix for an XSS vulnerability with field formatters. Any users of Kibana versions 4.3 to 4.6 are encouraged to update to 4.6.2 immediately. Kibana version 4.1.11 is not affected. Kibana installs on Elastic Cloud have been updated...

Logstash 2.3.3 Elasticsearch Output Vulnerability

Hi all, we would like to announce a security vulnerability we discovered in our testing. Logstash 2.3.4 has been released with a patch to fix this. Issue Prior to version 2.3.4, Elasticsearch Output plugin would log to file HTTP authorization headers which could contain sensitive information...

Logstash 2.2.1 Elasticsearch Output Vulnerability

Logstash version 2.2.1 is vulnerable to a man in the middle attack when used with Elasticsearch output. In version 2.2.1, the config which enables SSL/TLS default has been disabled inadvertently, so a malicious user could access payload data sent via HTTP during the initial handshake. This has be...

Kibana 4.4.1, 4.3.2, 4.1.5 - Updated node.js versions due to upstream vulnerabilities

Summary: The bundled versions of node.js in Kibana contain HTTP-related security vulnerabilities. Fixed versions of node.js were recently released. For the original node.js security announcement, see https://nodejs.org/en/blog/vulnerability/february-2016-security-releases/ Fixed versions: Kibana...

Logstash CSV Output Vulnerability - CVE pending

Summary: Logstash 2.2 and prior versions are vulnerable to a formula based injection, when using the CSV output plugin. This plugin allows users to export data in comma separated values and is susceptible to an attack if the values contained a spreadsheet formula. This vulnerability is not presen...

Kibana 4.x XSS -- CVE pending

Summary Kibana versions up to and including 4.3.0, 4.2.1, and 4.1.3 are vulnerable to a cross-site scripting XSS attack. The attack allows execution of arbitrary JavaScript in the context of the user’s browser. We have requested a CVE number and will update our forum post and website when the...

Kibana 3.1.3

We've identified two content sanitation issues in Kibana 3. While these are low impact and difficult to trigger we're releasing Kibana 3.1.3 to correct them: https://www.elastic.co/downloads/past-releases/kibana-3-1-3...

Kibana 9.4.4 Security Update (ESA-2026-73)

Missing Authorization in Kibana Leading to Information Disclosure Missing Authorization CWE-862 in Kibana can lead to unauthorized cross-space information disclosure via user-supplied input that circumvents space-level access control. Affected Versions: 9.4.x: All versions from 9.4.0 up to and...

Elasticsearch 8.19.18, 9.3.7, 9.4.4 Security Update (ESA-2026-57)

Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. A low-privileged authenticated user with permission to execute EQL sequence queries against ...

Elastic Stack 5.5.1 and Kibana 4.6.5 security update

Kibana Node.js security flaw ESA-2017-14 The version of Node.js shipped in all versions of Kibana prior to 5.5.1 contains a Denial of Service flaw in it's HashTable random seed. This flaw could allow a remote attacker to consume resources within Node.js preventing Kibana from servicing requests...