Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-52477— Octo-STS Vulnerable to Unauthenticated SSRF with HTTP Response Reflection in OIDC Flow

Quick assessment

Affected
octo-sts app
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

octo-sts是octo-sts开源的一个 Chainguard 的 GitHub 安全令牌服务。 octo-sts v0.5.3之前版本存在代码问题漏洞，该漏洞源于未经验证的服务端请求伪造漏洞。

CVSS 8.6 · High EPSS 0.49% · P40
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-52477

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Octo-STS Vulnerable to Unauthenticated SSRF with HTTP Response Reflection in OIDC Flow
Source: CVE Program / CVE List V5
Vulnerability Description
Octo-STS is a GitHub App that acts like a Security Token Service (STS) for the GitHub API. Octo-STS versions before v0.5.3 are vulnerable to unauthenticated SSRF by abusing fields in OpenID Connect tokens. Malicious tokens were shown to trigger internal network requests which could reflect error logs with sensitive information. Upgrade to v0.5.3 to resolve this issue. This version includes patch sets to sanitize input and redact logging.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
octo-sts 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
octo-sts是octo-sts开源的一个 Chainguard 的 GitHub 安全令牌服务。 octo-sts v0.5.3之前版本存在代码问题漏洞，该漏洞源于未经验证的服务端请求伪造漏洞。
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

Vendor Product Affected Versions CPE Subscribe
octo-sts app < 0.5.3 -

II. Public POCs for CVE-2025-52477

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8191 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2025-52477

请登录查看更多情报信息。

Patches & Fixes for CVE-2025-52477 (1)

Vendor Advisories for CVE-2025-52477 (1)

IV. Related Vulnerabilities

Same product: app
Same vendor: octo-sts
Same weakness: CWE-918

V. Comments for CVE-2025-52477

No comments yet

Leave a comment