What’s Vulnerable › Vulnerabilities

CVE-2026-72575: daptin - Authentication Bypass via Null Owner Permission Check on usergroup Objects

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-10-24
• Weakness: CWE-284

Description

An improper authorization vulnerability in daptin through v0.12.34 allows unauthenticated remote attackers to read, create, update, and delete usergroup records. The permission check functions (CanRead, CanPeek, CanCreate, CanUpdate, CanDelete, CanRefer) in server/permission/permission.go return true whenever p.UserId equals the requesting userId, but fail to reject the null/zero reference — unlike CanExecute, which explicitly guards it.

Affected products

• daptin: through v0.12.34

References

• https://github.com/daptin/daptin
• https://github.com/daptin/daptin/blob/master/server/permission/permission.go

Get alerted when CVE-2026-72575 or the next vulnerability affects your stack