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.
CVE-2026-32141
HIGHPre-NVD 7.57.5
EchelonGraph scoreLOW confidence
This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(low)
- EPSS
- 51.4%
- KEV
- Not listed
Published
March 12, 2026
Last Modified
July 2, 2026
Advisory Details (10)
Auto-updated Jul 3, 2026🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github, redhat.
redhat Patch Available
2447083 – (CVE-2026-32141) CVE-2026-32141 flatted: flatted: Unbounded recursion DoS in parse() revive phase
https://bugzilla.redhat.com/show_bug.cgi?id=2447083redhat Patch Available
redhat Patch Available
redhat Patch Available
redhat Patch Available
redhat Patch Available
github Patch Available🟡 PoC Available
Unbounded recursion DoS in parse() revive phase (CWE-674) · Advisory · WebReflection/flatted · GitHub
https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65fgithub_pr
Avoid recursion on parse due possible shenanigans
Fix merged in WebReflection/flatted PR #88 on 2026-03-08 — awaiting tagged release
https://github.com/WebReflection/flatted/pull/88github_commit
commit 7eb65d857e1a (WebReflection/flatted)
Fix landed in WebReflection/flatted commit 7eb65d857e1a — awaiting tagged release
https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606Vendor Advisories for CVE-2026-32141(6)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:34342Red Hat Product SecurityCritical
Red Hat Security Advisory: Cluster Observability Operator 1.5.0
- CVE-2026-32141Microsoft Security Response Center (MSRC)High
flatted: Unbounded recursion DoS in parse() revive phase
- RHSA-2026:21772Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.28.0 Release.
- RHSA-2026:13826Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Developer Hub 1.9.4 release.
- RHSA-2026:9742Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Developer Hub 1.8.6 release.
- RHSA-2026:5807Red Hat Product SecurityHigh
Red Hat Security Advisory: RHOAI 2.16.4 - Red Hat OpenShift AI
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | devspaces/dashboard-rhel9:1779341289 | 2026-05-28 | redhat |
| redhat | rhdh/rhdh-hub-rhel9:1777903262 | 2026-05-05 | redhat |
| redhat | rhdh/rhdh-hub-rhel9:1776784286 | 2026-04-22 | redhat |
| redhat | rhoai/odh-dashboard-rhel8:1774282136 | 2026-03-25 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| flatted | — | 3.4.0 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 11× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 04:39 UTCEG score recompute
- 2026-06-30 04:39 UTCVendor advisory
- 2026-06-30 04:31 UTCNVD updatefirst tracked
Frequently asked(5)
What is CVE-2026-32141?
CVE-2026-32141 is a high vulnerability published on March 12, 2026. 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…
When was CVE-2026-32141 disclosed?
CVE-2026-32141 was first published in the National Vulnerability Database on March 12, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-32141 actively exploited?
CVE-2026-32141 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 51.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-32141?
CVE-2026-32141 has a CVSS v3 base score of 7.5 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-32141?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-32141, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-32141
Is Your Infrastructure Affected by CVE-2026-32141?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.