🛡️ CVE-2025-13204 on npm (Root.io) — expr-eval

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV

8.0

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

CVE-2025-13204 in @rootio/expr-eval - Patched by Root

Root has patched CVE-2025-13204 in the @rootio/expr-eval package for Root:npm. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2025-13204 as tracked by npm (Root.io), for the package expr-eval. The fix is available in version 2.0.2-root.io.3; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

Weakness class

ROOT-APP-NPM-CVE-2025-13204 is classified as CWE-1321: Prototype Pollution. Attacker input can modify an object prototype, changing behaviour for objects across the application.

Affected software

ROOT-APP-NPM-CVE-2025-13204 is recorded against 2 packages.

@rootio/expr-eval (fixed in 2.0.2-root.io.3)
expr-eval (fixed in 2.0.2-aikido.3)

Timeline and source

Published on 4 June 2026 and last revised on 5 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

CVE-2025-13204 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Base record

Details

Severity HIGH

CVSS Score 8.0

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-06-04

Updated 2026-08-12

Modified 2026-06-05

Fix URL N/A

Affected Packages

Software	From version	Fixed in
@rootio/expr-eval	—	2.0.2-root.io.3
expr-eval	—	2.0.2-aikido.3

References

N/A

🔗 NVD 🔗 Mitre

Similar Threats

Critical ROOT-APP-NPM-CVE-2025-12735

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