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Fencer Vulns
high 7.5

CVE-2024-57085 json

@stryker-mutator/util vulnerable to Prototype Pollution

published 2025-02-05 21 mo ago modified 2026-06-17 4 mo ago also GHSA-9j5q-479x-43g2 , EUVD-2024-53527

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

A prototype pollution in the function deepMerge of @stryker-mutator/util v8.6.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.

Patch / fix

  • npm @stryker-mutator/util 8.7.1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm @stryker-mutator/util
<8.7.1
8.7.1

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.