BIT-ELASTICSEARCH-2026-102408 Inefficient Regular Expression Complexity in Elasticsearch Leading to Denial of Service

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

Elasticsearch 8.19.x < 8.19.22 / 9.1.x / 9.3.8 / 9.4.x < 9.4.8 / 9.5.x < 9.5.5 DoS (ESA-2026-189)

The version of Elasticsearch installed on the remote host is prior to 8.19.22, 9.4.8, or 9.5.5. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-189 advisory. - Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular...

CVE-2026-102408

A flaw was found in Elasticsearch. An authenticated attacker with read access to an index can cause a Denial of Service DoS by submitting queries containing specially crafted regular expressions to the ES|QL CHUNK function. Because the component does not properly restrict regular expression...

CVE-2026-102408

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

CVE-2026-102408

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

CVE-2026-102408

Elasticsearch is vulnerable to a Denial of Service via Inefficient Regular Expression Complexity (CWE-1333) within the ES|QL CHUNK function 's recursive chunking strategy. The root cause is the lack of validation for computational complexity or execution time bounds on user-supplied regular expre...

CVE-2026-102408 Inefficient Regular Expression Complexity in Elasticsearch Leading to Denial of Service

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

CVE-2026-102408 Inefficient Regular Expression Complexity in Elasticsearch Leading to Denial of Service

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

CVE-2026-102408 Inefficient Regular Expression Complexity in Elasticsearch Leading to Denial of Service

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

EUVD-2026-93929

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

Elasticsearch 9.4.8, 9.5.5 Security Update (ESA-2026-190)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service Uncontrolled Recursion CWE-674 in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation CAPEC-130. Affected Versions: 9.x:...

Elasticsearch 8.19.22, 9.4.8, and 9.5.5 Security Update (ESA-2026-189)

Inefficient Regular Expression Complexity in Elasticsearch Leading to Denial of Service Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy...

Elasticsearch 8.19.23, 9.4.8, 9.5.5 Security Update (ESA-2026-185)

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 can submit a specially crafted query that causes...

PT-2026-107158

Name of the Vulnerable Software and Affected Versions Elasticsearch affected versions not specified Description Inefficient Regular Expression Complexity in the ES|QL CHUNK function can lead to a denial of service via Regular Expression Exponential Blowup. The function's recursive chunking strate...

CVE-2026-102408: Inefficient Regular Expression Complexity

Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy accepts a list of user-supplied regular expressions used as text-splitting separators,...

Elasticsearch 8.11.x < 8.18.0 DoS (ESA-2026-111)

The version of Elasticsearch installed on the remote host is 8.11.x prior to 8.18.0. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-111 advisory. - Memory Allocation with Excessive Size Value CWE-789 in the ES|QL query processing of Elasticsearch can lead to denial of...

BIT-ELASTICSEARCH-2026-72656 Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service

Memory Allocation with Excessive Size Value CWE-789 in the ES|QL query processing of Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. An authenticated user able to submit ES|QL queries could send a specially crafted query whose evaluation allocates an unbounded amou...

PT-2026-79864

Memory Allocation with Excessive Size Value CWE-789 in the ES|QL query processing of Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. An authenticated user able to submit ES|QL queries could send a specially crafted query whose evaluation allocates an unbounded amou...

CVE-2026-72656

A flaw was found in Elasticsearch. An authenticated user, by submitting a specially crafted ES|QL query, could trigger an unbounded allocation of heap memory. This excessive memory consumption exhausts the available resources on the receiving node, leading to a denial of service DoS condition whe...

Memory Allocation with Excessive Size Value

Overview kibana is an open source Apache Licensed, browser-based analytics and search dashboard for Elasticsearch. Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the ES|QL query processing. An attacker can exhaust available heap memory and caus...