Every CVE Search/ Get API key

CVE-2025-13204

CVE-2025-13204

9.8 CriticalFix available

npm package expr-eval is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.85%Up 0.8 points since Nov 15, 2025
90%50%10%1%

What each source reports

CVE List Score used 9.8

CVE-2025-13204

npm package expr-eval is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.

Record
CVE-2025-13204
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-1321
Updated
2026-11-02
EUVDEUVD-2025-197614 9.8

npm package expr-eval is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.

Record
EUVD-2025-197614
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-8gw3-rxh4-v6jx 7.3

expr-eval vulnerable to Prototype Pollution

npm package expr-eval is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.

Record
GHSA-8gw3-rxh4-v6jx
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-1321
Updated
2026-11-02
NVD 9.8

npm package expr-eval is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.

Record
CVE-2025-13204
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-1321
Updated
2026-11-02
OSV 9.8

CVE-2025-13204

npm package expr-eval is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.

Record
CVE-2025-13204
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-8gw3-rxh4-v6jx 7.3

expr-eval vulnerable to Prototype Pollution

npm package expr-eval is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.

Record
GHSA-8gw3-rxh4-v6jx
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-1321
Updated
2026-11-02
OSVRHSA-2026:0140 7.3

Red Hat Security Advisory: grafana-pcp security update

Record
RHSA-2026:0140
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVROOT-APP-NPM-CVE-2025-13204 7.3

CVE-2025-13204 in expr-eval - Patched by Root

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

Record
ROOT-APP-NPM-CVE-2025-13204
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVCLSA-2026-1774830287 No score

TuxCare security update for expr-eval (2 CVEs)

TuxCare rebuilt expr-eval to address 2 CVEs. Fixed in 2.0.2-tuxcare.1.

Record
CLSA-2026-1774830287
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
expr-eval
npm
 through 2.0.2 None known
expr-eval-fork
npm
 before 2.0.2
2.0.2
expr-eval
TuxCare:npm
From an advisory covering 2 CVEs
 2.0.2-tuxcare.0 up to 2.0.2-tuxcare.1, plus listed versions
2.0.2
2.0.2-tuxcare.1
grafana-pcp
Red Hat:rhel_aus:8.2::appstream
 before 0:1.0.5-5.el8_2
0:1.0.5-5.el8_2
expr-eval
Root:npm
 before 2.0.2-aikido.3
2.0.2-aikido.32.0.2-aikido.4
@rootio/expr-eval
Root:npm
 before 2.0.2-root.io.2
2.0.2-root.io.22.0.2-root.io.32.0.2-root.io.4

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-13204 is a critical vulnerability (CVSS 9.8) in Silentmatt Expr-eval, published November 14, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. Fixed in expr-eval-fork 2.0.2.

References

Show 12 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open