What is CVE-2026-25726?

CVE-2026-25726 is a high-severity vulnerability in Cloudreve, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 8.1/10. Published 2026-04-03.

How severe is CVE-2026-25726?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Cloudreve

CVE-2026-25726

Cloudreve is a self-hosted file management and sharing system. Prior to version 4.13.0, the application uses the weak pseudo-random number generator math/rand seeded with time.Now().UnixNano() to generate critical security secrets, includi…

EPSS: 0.000 (6.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cloudreve — versions < 4.13.0

Weakness classification (CWE)

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

References

https://github.com/cloudreve/cloudreve/security/advisories/GHSA-f8xp-wvcx-p6f4 (x_refsource_CONFIRM)
https://github.com/cloudreve/cloudreve/releases/tag/4.13.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25726?: CVE-2026-25726 is a high-severity vulnerability in Cloudreve, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 8.1/10. Published 2026-04-03.
How severe is CVE-2026-25726?: High severity. CVSS v3 base score is 8.1 out of 10.