CVE-2025-69873

Fixed in a distro release EPSS <1%CVSS 2.9

ajv (Another JSON Schema Validator) before 8.18.0 is vulnerable to Regular Expression Denial of Service (ReDoS) when the $data option is enabled. The pattern keyword accepts runtime data via JSON Pointer syntax ($data reference), which is passed directly to the JavaScript RegExp() constructor without validation. An attacker can inject a malicious regex pattern (e.g., "^(a|a)*$") combined with crafted input to cause catastrophic backtracking. A 31-character payload causes approximately 44 seconds of CPU blocking, with each additional character doubling execution time. This enables complete denial of service with a single HTTP request against any API using ajv with $data: true for dynamic schema validation. This issue is also fixed in version 6.14.0.

Published 2026-02-11 · CVE record · OSV

Products: ajv.js ajv, Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9, Red Hat Ansible Automation Platform 2.6 for RHEL 9, Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7, Red Hat Network Observability (NETOBSERV) 1.11.0, Red Hat Ansible Automation Platform 2.6, Red Hat Developer Hub 1.8, Red Hat Developer Hub 1.9, Red Hat Edge Manager 1.0, Red Hat Edge Manager 1.1, Red Hat OpenShift AI 2.16, Red Hat OpenShift AI 3.3, Red Hat OpenShift Container Platform 4.14, Red Hat OpenShift Container Platform 4.15, Red Hat OpenShift Container Platform 4.16, Red Hat OpenShift Container Platform 4.17, Red Hat OpenShift Container Platform 4.19, Red Hat Openshift Data Foundation 4.18, Red Hat Openshift Data Foundation 4.19, Red Hat Openshift Data Foundation 4.20, Red Hat OpenShift Dev Spaces 3.27, Red Hat Quay 3.14, Red Hat Quay 3.15, Red Hat Quay 3.16, Red Hat Quay 3.9, Red Hat Satellite 6.18, Red Hat Confidential Compute Attestation, Red Hat Cryostat 4, Red Hat Gatekeeper 3, Logging Subsystem for Red Hat OpenShift, Red Hat Multicluster Engine for Kubernetes, Red Hat Network Observability Operator, Red Hat Node HealthCheck Operator, Red Hat OpenShift Pipelines, Red Hat OpenShift Service Mesh 2, Red Hat OpenShift Service Mesh 3, Red Hat 3scale API Management Platform 2, Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat Advanced Cluster Security 4, Red Hat AMQ Broker 7, Red Hat Ansible Automation Platform 2, Red Hat build of Apache Camel for Spring Boot 4, Red Hat build of Apache Camel - HawtIO 4, Red Hat build of Apicurio Registry 2, Red Hat build of Apicurio Registry 3, Red Hat Build of Keycloak, Red Hat build of OptaPlanner 8, Red Hat Connectivity Link 1, Red Hat Data Grid 8, Red Hat Directory Server 11, Red Hat Directory Server 12, Red Hat Directory Server 13, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, Red Hat JBoss Enterprise Application Platform 8, Red Hat JBoss Enterprise Application Platform Expansion Pack, Red Hat OpenShift AI (RHOAI), Red Hat OpenShift Container Platform 4, Red Hat OpenShift Dev Spaces, Red Hat OpenShift GitOps, Red Hat Process Automation 7, Red Hat Satellite 6, Red Hat Single Sign-On 7, Red Hat streams for Apache Kafka 2, Red Hat streams for Apache Kafka 3

Fixed upstream

Distro releases