CVE-2026-52814— Gogs: Unauthenticated Asymmetric Denial of Service (DoS) via SSH Handshake Stall (File Descriptor Exhaustion)
Possible ATT&CK Techniques 2AI
T1499 · Endpoint Denial of Service T1499.002 · Service Exhaustion FloodGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-52814
Vulnerability Information
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Vulnerability Title
Gogs: Unauthenticated Asymmetric Denial of Service (DoS) via SSH Handshake Stall (File Descriptor Exhaustion)
Source: CVE Program / CVE List V5
Vulnerability Description
Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Gogs built-in Go SSH server is vulnerable to an unauthenticated, asymmetric Denial of Service (DoS) attack. The application accepts inbound TCP connections and passes them to golang.org/x/crypto/ssh.NewServerConn inside a new goroutine without enforcing any read/write deadlines on the underlying net.Conn. An unauthenticated attacker can open multiple TCP connections to the SSH port and simply withhold the SSH protocol banner. This forces the server to spawn an unbounded number of goroutines that block indefinitely waiting for socket I/O. This leads to complete File Descriptor (FD) exhaustion, preventing legitimate users from accessing the Git SSH service, and ultimately destabilizing the entire Gogs process (e.g., causing internal log rotation failures). This vulnerability is fixed in 0.14.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Gogs 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gogs是Gogs团队开源的一个源代码管理软件。 Gogs 0.14.3之前版本存在资源管理错误漏洞，该漏洞源于内置Go SSH服务器未对底层网络连接实施读写截止时间，可能导致未经身份验证的攻击者通过打开多个TCP连接并阻止SSH协议横幅，导致文件描述符耗尽，进而引发拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-52814
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Patches & Fixes for CVE-2026-52814 (2)
Vendor Advisories for CVE-2026-52814 (1)
Vendor Pages for CVE-2026-52814 (1)
Same Patch Batch · gogs · 2026-06-24 · 24 CVEs total
| CVE-2026-52813 | 10.0 CRITICAL | Gogs: Path Traversal in organization name results in RCE through Git hooks |
| CVE-2026-52806 | 9.9 CRITICAL | Gogs: RCE via git rebase --exec argument injection in pull request merge |
| CVE-2026-52798 | 8.9 HIGH | Gogs: Stored XSS in `.ipynb` Preview |
| CVE-2026-52800 | 8.8 HIGH | Gogs: CSRF Leading to Organization Owner Takeover |
| CVE-2026-52805 | 8.7 HIGH | Gogs: Migration Redirect Bypass Leads to Internal Repository Theft |
| CVE-2026-52797 | 8.5 HIGH | Gogs: Overwriting critical files results in a denial of service |
| CVE-2026-47267 | 8.3 HIGH | Gogs: SSRF in webhook deliveries |
| CVE-2026-52801 | 8.1 HIGH | Gogs: Ability to import local repositories via Mirror Settings |
| CVE-2026-52799 | 7.5 HIGH | Gogs: Missing Authorization in Attachment Download |
| CVE-2026-52808 | 7.1 HIGH | Gogs: Write-level collaborators can mutate admin-only repository settings via API |
| CVE-2026-52809 | 6.8 MEDIUM | Gogs: Password-reset tokens use account-activation lifetime, ignoring RESET_PASSWORD_CODE_ |
| CVE-2026-52802 | 5.4 MEDIUM | Gogs: Open Redirect via redirect_to in Gogs |
| CVE-2025-64719 | 4.9 MEDIUM | Gogs: Denial of Service in repository/wiki file listing web pages |
| CVE-2026-52795 | 4.3 MEDIUM | Gogs: Authorization Bypass in Watch API allows any user to monitor private repository acti |
| CVE-2026-52796 | 3.5 LOW | Gogs: DoS in rendering issue index pattern |
| CVE-2026-52807 | Gogs: DOM-based XSS via Milestone Name on New Issue Page | |
| CVE-2026-52816 | Gogs: Unauthenticated Jupyter Notebook (ipynb) Sanitizer allows arbitrary data: URIs leadi | |
| CVE-2026-52810 | Gogs: Write to readonly repositories using receive-pack + service=git-upload-pack confusio | |
| CVE-2026-52812 | Gogs: LFS dedupe path leaks private repo content across tenants | |
| CVE-2026-52811 | Gogs: UploadRepoFiles writes outside repo working tree via committed parent sym |
Showing top 20 of 24 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: gogs
- CVE-2026-52797
Gogs: Overwriting critical files results in a denial of serv - CVE-2026-52813
Gogs: Path Traversal in organization name results in RCE thr - CVE-2026-52812
Gogs: LFS dedupe path leaks private repo content across tena - CVE-2026-52811
Gogs: UploadRepoFiles writes outside repo working tree via c - CVE-2026-52810
Gogs: Write to readonly repositories using receive-pack + se
Same vendor: gogs
- CVE-2026-52797
Gogs: Overwriting critical files results in a denial of serv - CVE-2026-52813
Gogs: Path Traversal in organization name results in RCE thr - CVE-2026-52812
Gogs: LFS dedupe path leaks private repo content across tena - CVE-2026-52811
Gogs: UploadRepoFiles writes outside repo working tree via c - CVE-2026-52810
Gogs: Write to readonly repositories using receive-pack + se
Same weakness: CWE-400
- CVE-2026-74797
OpenTofu before 1.11.4 Denial of Service via malicious zip - CVE-2026-74789
Scriban before 7.0.0 LoopLimit Bypass via Built-in Operation - CVE-2026-74785
Scriban before 7.0.0 Denial of Service via Unbounded Resourc - CVE-2026-73057
stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Ser - CVE-2026-18549
@fastify/multipart vulnerable to Denial of Service via abort
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