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vulnerability / NVI-00016065 / Revision 1

Gitea: Private org member list leaked via /members API endpoint — incomplete fix for PR #38145

GitHub lists this reviewed advisory for gitea.dev. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.

source listedactiveGHSA-prr9-9mp4-5gp2CVE-2026-58427

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01 / Meaning

Why it matters

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02 / Applicability

The affected context

Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.

gitea.dev

source listed
  • < 1.27.0

## Summary PR #38145 fixed ListPublicMembers and IsPublicMember but missed ListMembers. Any authenticated user can enumerate ALL members (not just public ones) of a private organization. ## Affected Versions <= v1.26.4 (latest) and main branch ## Root Cause routers/api/v1/org/member.go — ListMembers(): // Missing check: if !organization.HasOrgOrUserVisible(ctx, ctx.Org.Organization.AsUser(), ctx.Doer) { ctx.APIErrorNotFound() return } ## Proof of Concept # Setup: privateorg (private), alice = member, bob = outsider # Bob lists ALL members of private org curl -s "http://gitea/api/v1/orgs/privateorg/members" \ -H "Authorization: token BOB_TOKEN" # Result: HTTP 200 [{"login":"alice","email":"alice@test.com",...}] # Expected: HTTP 404 ## Note This is an incomplete fix variant of PR #38145. That PR fixed public_members endpoints only. ListMembers (/orgs/{org}/members) remains unpatched. ## Fix Add to ListMembers(): if !organization.HasOrgOrUserVisible(ctx, ctx.Org.Organization.AsUser(), ctx.Doer) { ctx.APIErrorNotFound() return }

GitHub Advisory Database

03 / Response

What to do next

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04 / Limits

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05 / Provenance

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  1. GHSA-prr9-9mp4-5gp2 ↗

    GitHub Advisory Database · vendor advisory

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  1. Revision 1 ·

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