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Fencer Vulns
high 8.3

CVE-2020-7738 json

Arbitrary Code Execution

published 2020-10-02 6 y ago modified 2026-06-17 4 mo ago also GHSA-jvf4-g24p-2qgw , EUVD-2021-1127

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

All versions of package shiba are vulnerable to Arbitrary Code Execution due to the default usage of the function load() of the package js-yaml instead of its secure replacement , safeLoad().

Exploit prediction

1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected packages

ecosystem package affected fixed in
npm shiba
<=1.2.1
no fix listed

Affected products

  • n/a shiba

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.