What is CVE-2026-47372?

CVE-2026-47372 is a critical-severity vulnerability in Rrwo Crypt::saltedhash, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 9.1/10. Published 2026-05-20.

How severe is CVE-2026-47372?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Rrwo Crypt::saltedhash

CVE-2026-47372

Crypt::SaltedHash versions through 0.09 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography.

EPSS: 0.000 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Rrwo Crypt::saltedhash — versions 0

Weakness classification (CWE)

CWE-338 — Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-47372?: CVE-2026-47372 is a critical-severity vulnerability in Rrwo Crypt::saltedhash, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 9.1/10. Published 2026-05-20.
How severe is CVE-2026-47372?: Critical severity. CVSS v3 base score is 9.1 out of 10.