Gitea OAuth2 PKCE S256 challenges are not enforced during token exchange
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Gitea | Gitea Open Source Git Server | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Gitea | Gitea Open Source Git Server |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-m5ch-ppfx-xv3v | Gitea OAuth2 PKCE S256 verifier bypass |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.495% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Gitea
Gitea gitea Open Source Git Server |
|
| Vendors & Products |
Gitea
Gitea gitea Open Source Git Server |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Gitea versions before 1.25.5 do not persist the OAuth2 PKCE S256 challenge method correctly during authorization, allowing token exchange without the expected verifier check. | |
| Title | Gitea OAuth2 PKCE S256 challenges are not enforced during token exchange | |
| Weaknesses | CWE-284 | |
| References |
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