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CVE-2026-32141

Webreflection Flatted denial of service

7.5 HIGHPublic exploitEPSS 0.99%
  1. Published12 Mar 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Webreflection Flatted< 3.4.0

Remediation

Fixed in
Webreflection Flatted≥ 3.4.0

References

and 4 more references

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Frequently asked

Is CVE-2026-32141 being actively exploited?

CVE-2026-32141 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.99%.

How severe is CVE-2026-32141?

CVE-2026-32141 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.99% probability of exploitation.

Which products are affected by CVE-2026-32141?

Affected products include Webreflection Flatted.

How do I fix CVE-2026-32141?

Upgrade affected software to a fixed version, for example Webreflection Flatted 3.4.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32141 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.