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Fencer Vulns
high 8.8

CVE-2020-7596 json

Improper Neutralization of Special Elements in Output Used by a Downstream Component in Codecov

published 2020-01-25 6 y ago modified 2026-06-17 4 mo ago also GHSA-mh2h-6j8q-x246 , EUVD-2022-4566

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Codecov npm module before 3.6.2 allows remote attackers to execute arbitrary commands via the "gcov-args" argument.

Patch / fix

  • npm codecov 3.6.2
  • codecov nodejs_uploader 3.6.2

Exploit prediction

1.86% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • snyk.io https://snyk.io/vuln/SNYK-JS-CODECOV-543183 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
npm codecov
<3.6.2
3.6.2

Affected products

  • n/a codecov npm module

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

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.