High 7.5Published Mar 12, 2026

CVE-2026-32141flatted: Unbounded recursion DoS in parse() revive phase

Updated under an hour ago (Oct 27, 2026, 10:30 AM ET)

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It affects WebReflection flatted and 23 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for WebReflection flatted

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-674, CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Sep 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WebReflection flatted webreflection:flatted (from the name)	before 3.4.0	CNA record
Red Hat Cluster Observability Operator 1.5.0 redhat:cluster_observability_operator	from 1782839279 not affected	CISA ADP
Red Hat Red Hat Developer Hub 1.8 redhat:rhdh	from 1776784286 not affected	CISA ADP
Red Hat Red Hat Edge Manager 1.0 redhat:edge_manager	from 1783502765 not affected	CISA ADP
Red Hat Red Hat OpenShift AI 2.16 redhat:openshift_ai	from 1774282136 not affected	CISA ADP
Red Hat Red Hat OpenShift Dev Spaces 3.28 redhat:openshift_devspaces	from 1779341289 not affected	CISA ADP
Red Hat Cryostat 4 redhat:cryostat	4	CISA ADP
Red Hat Logging Subsystem for Red Hat OpenShift redhat:logging	5	CISA ADP
Red Hat Red Hat 3scale API Management Platform 2 redhat:red_hat_3scale_amp	2	CISA ADP
Red Hat Red Hat AMQ Broker 7 redhat:amq_broker	7	CISA ADP
1–10 of 25

References

References

https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65f	x-refsource-confirm, exploit, patch, vendor-advisory
https://github.com/WebReflection/flatted/pull/88	x-refsource-misc, issue-tracking, patch
https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606	x-refsource-misc, patch
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
1–10 of 14

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.