Cap-go capgo up to 12.128.1 Organization /organization/members improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.69-

Summaryinfo

A vulnerability was found in Cap-go capgo up to 12.128.1 and classified as critical. This affects an unknown function of the file /organization/members of the component Organization Handler. Executing a manipulation can lead to improper authorization. This vulnerability is handled as CVE-2026-56310. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Cap-go capgo up to 12.128.1 and classified as critical. This vulnerability affects an unknown code of the file /organization/members of the component Organization Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality. CVE summarizes:

Cap-go before 12.128.2 contains an authorization bypass vulnerability in the GET /organization/members endpoint that allows org-limited API keys to bypass limited_to_orgs restrictions. Attackers with org-limited API keys can read membership data including uid, email, image_url, role, and is_tmp from organizations outside their assigned scope.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-56310 since 06/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 12.128.2 eliminates this vulnerability.

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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: Improper authorization
CWE: CWE-285 / 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: capgo 12.128.2

Timelineinfo

06/20/2026 CVE reserved
06/24/2026 +4 days Advisory disclosed
06/24/2026 +0 days VulDB entry created
06/24/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-56310 (🔒)
GCVE (CVE): GCVE-0-2026-56310
GCVE (VulDB): GCVE-100-373216

Entryinfo

Created: 06/24/2026 14:59
Changes: 06/24/2026 14:59 (77)
Complete: 🔍
Cache ID: 216::103

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