CVE-2026-28699
Gitea Basic Auth bypasses OAuth2 access token scopes
Description
Gitea versions up to and including 1.26.1 allow OAuth2 access token scope enforcement to be bypassed through HTTP Basic authentication.
INFO
Published Date :
July 3, 2026, 9:16 p.m.
Last Modified :
July 6, 2026, 6:17 p.m.
Remotely Exploit :
Yes !
Source :
88ee5874-cf24-4952-aea0-31affedb7ff2
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 88ee5874-cf24-4952-aea0-31affedb7ff2 |
Solution
- Update Gitea to the latest version.
- Verify OAuth2 access token scope enforcement.
- Remove any exposed credentials.
Public PoC/Exploit Available at Github
CVE-2026-28699 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28699.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28699 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28699
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28699 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-28699 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 06, 2026
Action Type Old Value New Value Added Reference https://github.com/go-gitea/gitea/security/advisories/GHSA-9r5x-wg6m-x2rc Added SSVC {'id': 'CVE-2026-28699', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-06T15:18:36.564092Z'} -
New CVE Received by 88ee5874-cf24-4952-aea0-31affedb7ff2
Jul. 03, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Gitea', 'product': 'Gitea Open Source Git Server', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.26.1'}], 'defaultStatus': 'unaffected'}] Added Description Gitea versions up to and including 1.26.1 allow OAuth2 access token scope enforcement to be bypassed through HTTP Basic authentication. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-284 Added CWE CWE-863 Added Reference https://blog.gitea.com/release-of-1.26.2/ Added Reference https://github.com/go-gitea/gitea/pull/37503 Added Reference https://github.com/go-gitea/gitea/releases/tag/v1.26.2 Added Reference https://github.com/go-gitea/gitea/security/advisories/GHSA-9r5x-wg6m-x2rc