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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-13543— Documenso Google OAuth Login handle-oauth-callback-url.ts improper authentication

Quick assessment

Affected
n/a Documenso
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.

Documenso是Documenso团队开源的一个开源 DocuSign 替代方案。 Documenso 2.11.0及之前版本存在授权问题漏洞，该漏洞源于Google OAuth Login组件的文件packages/auth/server/lib/utils/handle-oauth-callback-url.ts中的未知功能导致身份验证不当，可能允许远程攻击。

CVSS 5.6 · Medium EPSS 0.59% · P46

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProduct Version RangeStatus
n/a Documenso 2.0 affected
2.1 affected
2.2 affected
2.3 affected
2.4 affected
2.5 affected
2.6 affected
2.7 affected
… +4 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-13543

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Documenso Google OAuth Login handle-oauth-callback-url.ts improper authentication
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Documenso up to 2.11.0. Affected by this vulnerability is an unknown functionality of the file packages/auth/server/lib/utils/handle-oauth-callback-url.ts of the component Google OAuth Login. The manipulation results in improper authentication. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitation appears to be difficult. The exploit is now public and may be used. The pull request to fix this issue awaits acceptance.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Documenso 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Documenso是Documenso团队开源的一个开源 DocuSign 替代方案。 Documenso 2.11.0及之前版本存在授权问题漏洞，该漏洞源于Google OAuth Login组件的文件packages/auth/server/lib/utils/handle-oauth-callback-url.ts中的未知功能导致身份验证不当，可能允许远程攻击。
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

Vendor Product Affected Versions CPE Subscribe
- Documenso 2.0 cpe:2.3:a:documenso:documenso:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-13543

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-13543

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-13543 (1)

Exploits & Public PoCs for CVE-2026-13543 (1)

Vendor Pages for CVE-2026-13543 (1)

Same Patch Batch · n/a · 2026-06-29 · 12 CVEs total

CVE-2026-57919 7.8 HIGH Matrix42 Empirum Personal Backup 权限许可和访问控制问题漏洞
CVE-2026-13540 6.3 MEDIUM GitBucket RepositoryCreationService.scala Git.cloneRepository.setURI server-side request f
CVE-2026-13529 5.6 MEDIUM YzmCMS index.php sql injection
CVE-2026-13536 4.3 MEDIUM GotoHTTP reg.12x cross site scripting
CVE-2026-13523 3.3 LOW GPAC ISOBMFF base_encoding.c data amplification
CVE-2026-36848 Gigamon GVOS 路径遍历漏洞
CVE-2026-51219 Mz-automation lib60870 安全漏洞
CVE-2026-51218 Dave Nardella Snap7 安全漏洞
CVE-2026-51221 EIPStackGroup OpENer 安全漏洞
CVE-2026-37637 Alex Yashkin PHP File Manager 代码注入漏洞
CVE-2026-31016 Squidex 跨站请求伪造漏洞

IV. Related Vulnerabilities

Same product: Documenso
Same vendor: n/a
Same weakness: CWE-287

V. Comments for CVE-2026-13543

No comments yet

Leave a comment