Description
flatted is a circular JSON parser. Prior to 3.4.0, flatted's parse() function uses a recursive revive() phase to resolve circular references in deserialized JSON. When given a crafted payload with deeply nested or self-referential $ indices, the recursion depth is unbounded, causing a stack overflow that crashes the Node.js process. This vulnerability is fixed in 3.4.0.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| WebReflection | flatted | < 3.4.0 |
| Red Hat | Cluster Observability Operator 1.5.0 | — |
| Red Hat | Cluster Observability Operator 1.5.0 | — |
| Red Hat | Cluster Observability Operator 1.5.0 | — |
| Red Hat | Red Hat Developer Hub 1.8 | — |
| Red Hat | Red Hat Developer Hub 1.9 | — |
| Red Hat | Red Hat Edge Manager 1.0 | — |
| Red Hat | Red Hat Edge Manager 1.0 | — |
| Red Hat | Red Hat Edge Manager 1.1 | — |
| Red Hat | Red Hat Edge Manager 1.1 | — |
| Red Hat | Red Hat Edge Manager 1.1 | — |
| Red Hat | Red Hat Edge Manager 1.1 | — |
| Red Hat | Red Hat OpenShift AI 2.16 | — |
| Red Hat | Red Hat OpenShift Dev Spaces 3.28 | — |
| Red Hat | Cryostat 4 | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat AMQ Broker 7 | — |
| Red Hat | Red Hat Ansible Automation Platform 2 | — |
| Red Hat | Red Hat build of Apicurio Registry 2 | — |
| Red Hat | Red Hat build of OptaPlanner 8 | — |
| Red Hat | Red Hat Data Grid 8 | — |
| Red Hat | Red Hat Directory Server 11 | — |
| Red Hat | Red Hat Directory Server 12 | — |
| Red Hat | Red Hat Directory Server 13 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Fuse 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
References
- https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606Patch
- https://github.com/WebReflection/flatted/pull/88Issue Tracking, Patch
- https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65fExploit, Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:13826
- https://access.redhat.com/errata/RHSA-2026:21772
- https://access.redhat.com/errata/RHSA-2026:34342
- https://access.redhat.com/errata/RHSA-2026:36651
- https://access.redhat.com/errata/RHSA-2026:40118
- https://access.redhat.com/errata/RHSA-2026:40945
- https://access.redhat.com/errata/RHSA-2026:5807
- https://access.redhat.com/errata/RHSA-2026:9742
- https://access.redhat.com/security/cve/CVE-2026-32141
- https://bugzilla.redhat.com/show_bug.cgi?id=2447083
- https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65fExploit, Patch, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32141.json
Timeline
- Published
- Mar 12, 2026
- Last modified
- Sep 4, 2026
- NVD status
- Modified