What is CVE-2026-32141?

CVE-2026-32141 is a high-severity vulnerability in Webreflection Flatted, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-03-12.

How severe is CVE-2026-32141?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Webreflection Flatted

CVE-2026-32141

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 $ indice…

EPSS: 0.000 (6.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Webreflection Flatted — versions < 3.4.0

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65f (x_refsource_CONFIRM)
https://github.com/WebReflection/flatted/pull/88 (x_refsource_MISC)
https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-32141?: CVE-2026-32141 is a high-severity vulnerability in Webreflection Flatted, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-03-12.
How severe is CVE-2026-32141?: High severity. CVSS v3 base score is 7.5 out of 10.