CVE-2025-64102

HIGH EPSS 27.2%
Published Oct 29, 20258mo ago · Modified Jun 17, 20262w ago
7.7 CVSS 4.0
High
Find Similar
Published Oct 29, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

Description

Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, an attacker can perform an online brute-force attack on OTP, TOTP, and passwords. While Zitadel allows preventing online brute force attacks in scenarios like TOTP, Email OTP, or passwords using a lockout mechanism. The mechanism is not enabled by default and can cause a denial of service for the corresponding user if enabled. Additionally, the mitigation strategies were not fully implemented in the more recent resource-based APIs. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.

CVSS Details

Base Score
7.7
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
27.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-307

Affected Products 3

VendorProductVersionRange
zitadelzitadel* <2.71.18
zitadelzitadel*≥3.0.0  –  <3.4.3
zitadelzitadel*≥4.0.0  –  <4.6.0

References 2

  • github.com https://github.com/zitadel/zitadel/commit/b8db8cdf9cc8ea13f461758aef12457f8b7d972a
    Patch
  • github.com https://github.com/zitadel/zitadel/security/advisories/GHSA-xrw9-r35x-x878
    Vendor Advisory

Remediation

  • github.com https://github.com/zitadel/zitadel/commit/b8db8cdf9cc8ea13f461758aef12457f8b7d972a
    Patch