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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-58489— HedgeDoc: CSRF in GitHub Gist export callback

Quick assessment

Affected
hedgedoc hedgedoc
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.

HedgeDoc是HedgeDoc团队开源的一个基于Javascript的Markdown文档实时编辑分享平台。 HedgeDoc 1.11.0版本之前存在跨站请求伪造漏洞，该漏洞源于GitHub Gist导出流程中的OAuth2状态值未正确验证，可能导致登录用户点击特制链接后将私有笔记导出到攻击者控制的Gist中。

AI Predicted 6.5 Difficulty: Easy EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
hedgedoc hedgedoc < 1.11.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-58489

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
HedgeDoc: CSRF in GitHub Gist export callback
Source: CVE Program / CVE List V5
Vulnerability Description
HedgeDoc is an open source, real-time collaborative markdown notes application. Prior to 1.11.0, the GitHub Gist export flow created an OAuth2  state  value but only checked that it was present rather than validating it against the value expected for the user's session. Because the state was not properly validated, an attacker could forge a callback URL containing their own valid GitHub OAuth code. When processing the callback, HedgeDoc used the victim's logged-in session to select which note to export, but the attacker's authorization code to determine which GitHub account received it. As a result, a logged-in victim who clicked a crafted link could export their own private, protected, or limited note directly into a Gist controlled by the attacker. This issue has been fixed in version 1.11.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
HedgeDoc 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HedgeDoc是HedgeDoc团队开源的一个基于Javascript的Markdown文档实时编辑分享平台。 HedgeDoc 1.11.0版本之前存在跨站请求伪造漏洞，该漏洞源于GitHub Gist导出流程中的OAuth2状态值未正确验证，可能导致登录用户点击特制链接后将私有笔记导出到攻击者控制的Gist中。
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
hedgedoc hedgedoc < 1.11.0 -

II. Public POCs for CVE-2026-58489

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-58489

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-58489 (1)

Vendor Advisories for CVE-2026-58489 (1)

Same Patch Batch · hedgedoc · 2026-07-13 · 4 CVEs total

CVE-2026-58487 HedgeDoc: Stored HTML injection via email local-part
CVE-2026-58488 HedgeDoc: Rate-limit bypass via CF-Connecting-IP header spoofing
CVE-2026-58486 HedgeDoc: Denial-of-service via YAML alias expansion in note frontmatter

IV. Related Vulnerabilities

Same product: hedgedoc
Same vendor: hedgedoc
Same weakness: CWE-352

V. Comments for CVE-2026-58489

No comments yet

Leave a comment