CVE-2026-72685 Inefficient Algorithmic Complexity in Elasticsearch Leading to Denial of Service

A flaw in Elasticsearch allows a low-privileged authenticated user who can index documents to submit a single small document containing a crafted user-supplied input. Processing one such document occupies a worker thread from a bounded pool for a disproportionate amount of time, degrading the...

CVE-2026-72684

This CVE affects Elasticsearch where an authenticated user with read privileges can trigger memory allocation by sending a crafted small search input, leading to an out-of-memory fatal condition and node denial of service. Affected versions: 8.0.0–8.19.19 and 9.0.0–9.4.4. Mitigation: upgrade to v...

CVE-2026-72684 Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service

A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the...

EUVD-2026-58248

A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the...

CVE-2026-72684 Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service

A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the...

CVE-2026-72684

A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the...

CVE-2026-72683 Uncontrolled Recursion in Elasticsearch Leading to Denial of Service

A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API endpoint https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-ingest-simulate to submit a request that causes a self-referential data structure to be created. Whe...

CVE-2026-72683

The CVE-2026-72683 issue affects Elasticsearch where an authenticated user able to call the simulate pipeline API can submit a request that creates a self-referential data structure. When processed by an internal component, the operation recurses without bound, causing a fatal error that terminat...

CVE-2026-72683 Uncontrolled Recursion in Elasticsearch Leading to Denial of Service

A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API endpoint https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-ingest-simulate to submit a request that causes a self-referential data structure to be created. Whe...

CVE-2026-72683

A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API endpoint https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-ingest-simulate to submit a request that causes a self-referential data structure to be created. Whe...

EUVD-2026-58247

A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API endpoint https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-ingest-simulate to submit a request that causes a self-referential data structure to be created. Whe...

CLEANSTART-2026-RZ47271 Security fixes in elasticsearch 9.4.4-r5

Package elasticsearch version 9.4.4-r5 fixes 2 vulnerabilities: CVE-2026-71497, CVE-2026-45292...

CLEANSTART-2026-PL66307 Security fixes in elasticsearch 9.3.8-r1

Package elasticsearch version 9.3.8-r1 fixes 33 vulnerabilities: CVE-2026-59650, CVE-2026-8763, CVE-2025-66021, CVE-2026-12185, CVE-2026-12802...

CLEANSTART-2026-VF22608 Security fixes in elasticsearch 9.3.8-r2

Package elasticsearch version 9.3.8-r2 fixes 8 vulnerabilities: CVE-2026-13505, CVE-2026-12817, CVE-2026-59640, CVE-2026-59649, CVE-2026-58062...

CLEANSTART-2026-GA94672 Security fixes in elasticsearch 9.4.4-r4

Package elasticsearch version 9.4.4-r4 fixes 38 vulnerabilities: CVE-2026-54516, CVE-2026-54517, CVE-2026-54518, CVE-2026-13506, CVE-2026-12816...

Elasticsearch 8.19.20, 9.4.5 Security Update (ESA-2026-76)

Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-80)

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service Elasticsearch does not validate a size value taken from a user-supplied input before that value is used to reserve memory for an internal data structure. An authenticated user holding only read privileges ca...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-79)

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single small request containing a forged opaque identifier. Elasticsearch decodes and deserializes the identifier before...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-78)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single request containing a crafted user-supplied input. A specific internal component validates the input using a recursive routine and applies no...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-123)

Use of Out-of-range Pointer Offset in the Elasticsearch Machine Learning Native Inference Process The native inference process that Elasticsearch uses to evaluate uploaded machine learning models accepts a model operation that computes a memory address from an offset supplied inside the model,...