CVE-2026-70357— Gitea repository migration SSRF through DNS rebinding
Quick assessment
Affected
Gitea Gitea
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Gitea 在执行 Git 操作前，会验证仓库迁移的主机名是否在网络允许和阻止列表中。然而，Git 子进程在建立连接时是独立解析该主机名的。如果攻击者能够发起迁移请求并控制目标主机的 DNS 响应，便可以在主机名验证与 Git 实际连接之间篡改 DNS 解析结果，从而绕过访问控制，访问到被阻止的内部地址。受影响的场景是 Git 克隆操作；迁移过程中 HTTP 客户端连接器的验证机制无法保护独立建立连接的 Git 子进程。
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I. Basic Information for CVE-2026-70357
Vulnerability Information
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Vulnerability Title
Gitea repository migration SSRF through DNS rebinding
Source: CVE Program / CVE List V5
Vulnerability Description
Gitea validates a repository migration hostname against its network allow and block lists before invoking Git, but the Git subprocess independently resolves the hostname when connecting. An attacker who can start a migration and control the destination's DNS can change the address between validation and connection to reach a blocked internal address. The affected path is the Git clone operation; validation in the migration HTTP client's dialer does not protect the independently connecting Git subprocess.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-70357
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-70357 (4)
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https://github.com/go-gitea/gitea/releases/tag/v28.0.0 release-notes
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https://blog.gitea.com/release-of-28.0.0/ release-notes
Same Patch Batch · Gitea · 2026-10-06 · 21 CVEs total
| CVE-2026-104636 | Gitea SSRF through Git HTTP redirects in mirrors and fetches | |
| CVE-2026-73278 | Gitea WebAuthn bypass during OAuth and OIDC sign-in | |
| CVE-2026-79960 | Gitea deploy key pushes acting as the repository owner | |
| CVE-2026-96580 | Gitea Actions memory exhaustion through large static matrices | |
| CVE-2026-96589 | Gitea private repository access retained after rejected transfer | |
| CVE-2026-96400 | Gitea migration SSRF to reserved addresses through ALLOWED_DOMAINS | |
| CVE-2026-96399 | Gitea denial of service through external issue tracker patterns | |
| CVE-2026-96404 | Gitea installer authentication bypass for existing accounts | |
| CVE-2026-104626 | Gitea fork workflow job revival through later approval | |
| CVE-2026-104632 | Gitea fork workflow approval bypass through cancel and rerun | |
| CVE-2026-94205 | Gitea fork workflow approval bypass through maintainer-triggered events | |
| CVE-2026-101027 | Gitea migration SSRF through ALLOWED_DOMAINS address check bypass | |
| CVE-2026-101029 | Gitea migration and pull mirror SSRF through multi-answer DNS | |
| CVE-2026-95106 | Gitea review and execution mismatch through duplicate tree entries | |
| CVE-2026-95112 | Gitea issue reference parsing CPU exhaustion | |
| CVE-2026-89430 | Gitea push mirror SSRF and forced writes to internal Git hosts | |
| CVE-2026-103504 | Gitea API team demotion not applied to unit permissions | |
| CVE-2026-103667 | Gitea container registry stored XSS through blob media type | |
| CVE-2026-103059 | Gitea built-in SSH server authentication bypass through key case folding | |
| CVE-2026-103670 | Gitea trusted workflow cancellation by unapproved fork runs |
IV. Related Vulnerabilities
Same product: Gitea
-
CVE-2026-73278
Gitea WebAuthn bypass during OAuth and OIDC sign-in -
CVE-2026-96589
Gitea private repository access retained after rejected tran -
CVE-2026-96580
Gitea Actions memory exhaustion through large static matrice -
CVE-2026-96404
Gitea installer authentication bypass for existing accounts -
CVE-2026-96400
Gitea migration SSRF to reserved addresses through ALLOWED_D
Same vendor: Gitea
-
CVE-2026-73278
Gitea WebAuthn bypass during OAuth and OIDC sign-in -
CVE-2026-96589
Gitea private repository access retained after rejected tran -
CVE-2026-96580
Gitea Actions memory exhaustion through large static matrice -
CVE-2026-96404
Gitea installer authentication bypass for existing accounts -
CVE-2026-96400
Gitea migration SSRF to reserved addresses through ALLOWED_D
Same weakness: CWE-918
-
CVE-2026-106032
Server-side request forgery and local file read via unrestri -
CVE-2026-106455
Backstage: Improper validation of MkDocs plugin configuratio -
CVE-2026-101150
Security Advisory 0186 -
CVE-2026-101149
Security Advisory 0186 -
CVE-2026-96400
Gitea migration SSRF to reserved addresses through ALLOWED_D
V. Comments for CVE-2026-70357
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