CVE-2026-28699

Gitea Basic Auth bypasses OAuth2 access token scopes

CVSS 8.1 HIGHEPSS 0.6%CWE-284 CWE-863

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Popular PoC on GitHub (1 stars) — exploitation code widely available.

CVSS 8.1EPSS 0.6%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado

Lifecycle

11 Jun 2026Public PoC

03 Jul 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

Gitea versions up to and including 1.26.1 allow OAuth2 access token scope enforcement to be bypassed through HTTP Basic authentication.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

public PoCs found — 1

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References