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Fencer Intel
medium 5.3

CVE-2017-16028 json

Cryptographically Weak PRNG in randomatic

published 2018-06-04 8 y ago modified 2026-06-17 4 mo ago also GHSA-6g33-f262-xjp4 , EUVD-2018-0518

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

react-native-meteor-oauth is a library for Oauth2 login to a Meteor server in React Native. The oauth Random Token is generated using a non-cryptographically strong RNG (Math.random()).

Patch / fix

  • npm randomatic 3.0.0
  • randomatic_project randomatic 3.0.0

Exploit prediction

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
npm randomatic
<3.0.0
3.0.0

Affected products

  • HackerOne react-native-meteor-oauth node module

Classification

Weakness
  • CWE-330 Use of Insufficiently Random Values
  • CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

Sources

Fencer Intel 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.