Net::Dropbox::API 1.9 and earlier for Perl uses insecure rand() function for cryptographic functions

published 2025-04-05 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-54368

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

Net::Dropbox::API 1.9 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.

Specifically Net::Dropbox::API uses the Data::Random library which specifically states that it is "Useful mostly for test programs". Data::Random uses the rand() function.

Patch / fix

distros 2

debian opensuse

libnet-dropbox-api-perl Debian 14 1.9-3

debian advisories DEBIAN-CVE-2024-58036

perl-Net-Dropbox-API openSUSE Tumbleweed 1.900.0-2.1

opensuse advisories openSUSE-SU-2025:15187-1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-04-07)

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
CNA	3.1	5.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Affected products

NORBU Net::Dropbox::API

Classification

Weakness

CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CWE-331 Insufficient Entropy

References

Sources

CVE List CVE-2024-58036
NVD CVE-2024-58036

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.

Summary