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.
Published:
2026-07-03
Score:
n/a
EPSS:
n/a
KEV:
No
Impact:
n/a
Action:
n/a
Analysis
No analysis available yet.
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 |
|
No data.
No data.
No data available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
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References
History
Fri, 03 Jul 2026 20:45:00 +0000
| 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 |
|
Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: Gitea
Published:
Updated: 2026-07-03T20:19:34.820Z
Reserved: 2026-03-03T03:25:28.654Z
Link: CVE-2026-26247
Vulnrichment
No data.
NVD
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Redhat
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OpenCVE Enrichment
No data.
Weaknesses
-
CWE-284
Improper Access Control