PatchTheCVECVE-2026-25726: Cloudreve is a self-hosted file management and sharing system
CVE-2026-25726 is a high-severity flaw (CVSS 8.1) affecting cloudreve. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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, including the secret_key, and hash_id_salt. These secrets are generated upon first startup and persisted in the database. An attacker can exploit this by obtaining the administrator's account creation time (via public
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.1 (High) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 69%) |
| CISA exploited list | No |
| Weakness | CWE-338 |
| Published | 2026-04-03 |
| Last modified | 2026-07-24 |
Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-25726?
cloudreve: upgrade to 4.13.0. Exact commands for each OS are on this page.
Is CVE-2026-25726 being exploited?
CVE-2026-25726 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-25726 affect?
CVE-2026-25726 affects cloudreve. Severity is high (CVSS 8.1). 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, includin
How urgent is CVE-2026-25726?
Priority 41/100. High severity; Remotely exploitable, no login, no user action