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CVE-2026-75773: Improper Restriction of Excessive Authentication Attempts in karakeep-app karakeep

0
Medium
VulnerabilityCVE-2026-75773cvecve-2026-75773
Published: 08/18/2026 (08/18/2026, 11:00:12 UTC)
Source: CVE Database V5
Vendor/Project: karakeep-app
Product: karakeep

Description

CVE-2026-75773 is a vulnerability in karakeep-app karakeep up to version 0.32.0 affecting the authorize function in the Login Endpoint. It allows improper restriction of excessive authentication attempts, potentially enabling attackers to perform repeated login attempts remotely. The vulnerability has a medium severity with a CVSS score of 6.3. Exploitation is difficult and requires high complexity. The issue is fixed in version 0.33.0.

CVSS v4.0

Score 6.3medium

Attack Vector
Network
Attack Complexity
High
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Affected software

karakeep-app

karakeep

Affected versions
=0.1=0.2=0.3=0.4=0.5=0.6=0.7=0.8=0.9=0.10=0.11=0.12=0.13=0.14=0.15=0.16=0.17=0.18=0.19=0.20=0.21=0.22=0.23=0.24=0.25=0.26=0.27=0.28=0.29=0.30=0.31=0.32.0
GitHub Actionsmore threats →ai
karakeep-app/karakeep
pkg:github/karakeep-app/karakeep
Affected versions
<=0.32.0
CPE configurations
cpe:2.3:a:karakeep-app:karakeep:*:*:*:*:*:*:*:*

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 23:19:00 UTC

Technical Analysis

This vulnerability in karakeep-app karakeep (<=0.32.0) involves improper restriction of excessive authentication attempts in the authorize function of the Login Endpoint (apps/web/server/auth.ts). This flaw could allow remote attackers to attempt multiple authentication requests beyond intended limits. The exploitability is difficult and requires high complexity. A public exploit exists. The vulnerability is resolved by upgrading to version 0.33.0, with the patch identified by commit f7d042971d0d2bcc7119654830cf1eb93eabbf24.

Potential Impact

The vulnerability allows attackers to bypass or circumvent rate limiting or restrictions on authentication attempts, potentially enabling brute force or credential stuffing attacks. However, the complexity of exploitation is high, and no known exploits are currently active in the wild. The impact is rated medium severity with a CVSS 4.0 score of 6.3.

Mitigation Recommendations

Upgrade karakeep-app karakeep to version 0.33.0 or later to apply the official fix. This upgrade fully addresses the vulnerability by properly restricting excessive authentication attempts. No additional mitigation steps are indicated.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-08-18T04:30:29.332Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6a8442fac6e8be033220da7c

Added to database: 08/18/2026, 11:33:14 UTC

Last enriched: 09/11/2026, 23:19:00 UTC

Last updated: 10/02/2026, 02:46:06 UTC

Views: 59

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