OSV 1.4.0 · github-reviewed · 修改于 2026-07-22 04:13
发布时间
2026-07-22 04:13
GitHub 审查时间
2026-07-22 04:13
NVD 发布时间
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源文件
advisories/github-reviewed/2026/07/GHSA-qf2f-qh6p-7v89/GHSA-qf2f-qh6p-7v89.json
CVE-2026-20800 fixed private-info leakage to revoked users only for the notification endpoint. Two sibling endpoints that return data keyed on the caller's own relationship still do not re-check repo access at output time:
GET /api/v1/user/starred — getStarredRepos() computes a per-repo permission but still lists every
starred repo (no filtering), so the full repo object (full_name, private, clone_url, ssh_url)
of a now-inaccessible private repo is returned.GET /api/v1/user/times — ListMyTrackedTimes() queries by UserID only and LoadAttributes brings
in the issue (title, state), leaking private issue titles after revocation.Using the provided reproduction materials, as a revoked user:
GET /api/v1/repos/admin/starred-test → 404.GET /api/v1/user/starred → leaks admin/starred-test, private:true, clone_url.GET /api/v1/user/times → leaks issue.title = "SECRET: …", state.(Runtime-confirmed on gitea/gitea:1.25.4. Oracle = planted sentinel title; no real secret exfiltrated.)
A former collaborator can enumerate private repos they starred and read private issue titles they logged time on, indefinitely after access revocation. Metadata only (no repo content / comment bodies). Low.
getStarredRepos: drop (or minimally redact) repos where permission.HasAnyUnitAccessOrPublicAccess()
is false for the caller.ListMyTrackedTimes: filter tracked-time entries by current repo access.Reported as part of an incomplete-patch measurement study (responsible disclosure).