CVE-2026-58427Public exploitNetwork attack vectorHinoki check available

Private organization member disclosure via missing visibility check

Published Aug 13, 2026 · Updated Aug 13, 2026

Incorrect authorization in Gitea 1.26.4 and earlier allows remote authenticated users to enumerate members of private organizations. The ListMembers handler for GET /orgs/{org}/members omits the HasOrgOrUserVisible check and returns every member rather than hiding the organization. Any authenticated outsider can retrieve private membership records, including account names and exposed member details, without belonging to the organization.

CVSS severity7.5
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in Gitea 1.26.4 and earlier allows remote authenticated users to enumerate members of private organizations. The ListMembers handler for GET /orgs/{org}/members omits the HasOrgOrUserVisible check and returns every member rather than hiding the organization. Any authenticated outsider can retrieve private membership records, including account names and exposed member details, without belonging to the organization.

The record

CVE
CVE-2026-58427
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
Gitea
Product
Gitea
Classifications
CWE-863, CWE-200, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.26.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Gitea · Giteaversion=0 <=1.26.4

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1087Account Discovery

Public exploit references

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Technologies

Your stack

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Your stack

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