CVE-2026-109844
MEDIUM
CVSS 4.3
Published: 2026-10-18
Modified: 2026-10-19
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Description
`GET /api/v1/user/subscriptions` returned the metadata of every repository a user was watching without checking that the user still had access to it. A user who watched a private repository while having access, and later lost it, for example through a team permission downgrade, could still read its name, description, clone URLs, owner and counters. The issue was fixed in 1.27.0 and 28.0.0 and disclosed with 28.2.0.
Quick Facts
| CVE ID | CVE-2026-109844 |
| CVSS Score | 4.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| Published | 2026-10-18 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |