go-vikunja Vikunja up to 2.7.0 Team Member Self-Removal Endpoint information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00+

Summaryinfo

A vulnerability was found in go-vikunja Vikunja up to 2.7.0. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component Team Member Self-Removal Endpoint. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2026-123517. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in go-vikunja Vikunja up to 2.7.0. It has been classified as problematic. This affects an unknown function of the component Team Member Self-Removal Endpoint. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Vikunja before 2.7.1 contains an information disclosure vulnerability that allows authenticated users to determine whether private teams exist by calling the team member self-removal endpoint. Attackers can send DELETE requests to /teams/{id}/members/{own username} for arbitrary team ids and use the distinguishable responses to learn if a team exists, is SSO-managed, or has a single member.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-123517 since 11/06/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 2.7.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Vikunja 2.7.1

Timelineinfo

11/06/2026 CVE reserved
11/08/2026 +2 days Advisory disclosed
11/08/2026 +0 days VulDB entry created
11/08/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CNA: VulnCheck
CVE: CVE-2026-123517 (🔒)

GCVE (CVE): GCVE-0-2026-123517
GCVE (VulDB): GCVE-100-432663

Entryinfo

Created: 11/08/2026 03:02
Changes: 11/08/2026 03:02 (76)
Complete: 🔍
Cache ID: 216::103

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