CVE-2026-101029
Gitea migration and pull mirror SSRF through multi-answer DNS
Description
Gitea's repository migration and pull mirror egress checks could be bypassed with a hostname that returns multiple DNS answers, because the address that was validated was not necessarily the address Git later connected to. A low-privileged user who can create migrations or mirrors could direct the server to internal services, reading from and writing to reachable internal Git or HTTP endpoints. Content from internal responses could additionally be disclosed through migration and mirror error messages.
INFO
Published Date :
Oct. 6, 2026, 8:17 p.m.
Last Modified :
Oct. 15, 2026, 2:29 a.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 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Ensure all connection addresses are validated.
- Validate Git connections to internal services.
- Restrict access to internal Git/HTTP endpoints.
- Patch or update Gitea.
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-2026-101029.
| URL | Resource |
|---|---|
| https://blog.gitea.com/release-of-28.0.0/ | Release Notes |
| https://github.com/go-gitea/gitea/pull/39010 | Patch Issue Tracking |
| https://github.com/go-gitea/gitea/pull/39426 | Patch Issue Tracking |
| https://github.com/go-gitea/gitea/releases/tag/v28.0.0 | Release Notes |
| https://github.com/go-gitea/gitea/security/advisories/GHSA-6g2h-xpg3-rm48 | Exploit Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-101029 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-2026-101029
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-101029 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-101029 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.
-
Initial Analysis by [email protected]
Oct. 15, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:* versions up to (excluding) 28.0.0 Added Reference Type Gitea Limited: https://blog.gitea.com/release-of-28.0.0/ Types: Release Notes Added Reference Type Gitea Limited: https://github.com/go-gitea/gitea/pull/39010 Types: Issue Tracking, Patch Added Reference Type Gitea Limited: https://github.com/go-gitea/gitea/pull/39426 Types: Issue Tracking, Patch Added Reference Type Gitea Limited: https://github.com/go-gitea/gitea/releases/tag/v28.0.0 Types: Release Notes Added Reference Type Gitea Limited: https://github.com/go-gitea/gitea/security/advisories/GHSA-6g2h-xpg3-rm48 Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 07, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Added SSVC {'id': 'CVE-2026-101029', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-10-07T20:17:52.447255Z'} -
New CVE Received by 88ee5874-cf24-4952-aea0-31affedb7ff2
Oct. 06, 2026
Action Type Old Value New Value Added Description Gitea's repository migration and pull mirror egress checks could be bypassed with a hostname that returns multiple DNS answers, because the address that was validated was not necessarily the address Git later connected to. A low-privileged user who can create migrations or mirrors could direct the server to internal services, reading from and writing to reachable internal Git or HTTP endpoints. Content from internal responses could additionally be disclosed through migration and mirror error messages. Added CWE CWE-918 Added CWE CWE-209 Added CWE CWE-367 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/101xxx/CVE-2026-101029.json">CVE-2026-101029</a> Added Reference https://blog.gitea.com/release-of-28.0.0/ Added Reference https://github.com/go-gitea/gitea/pull/39010 Added Reference https://github.com/go-gitea/gitea/pull/39426 Added Reference https://github.com/go-gitea/gitea/releases/tag/v28.0.0 Added Reference https://github.com/go-gitea/gitea/security/advisories/GHSA-6g2h-xpg3-rm48