CVE-2026-13543

MEDIUM 5.6

Documenso Google OAuth Login handle-oauth-callback-url.ts improper authentication

CVSS Score

5.6

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-287
Vendor	n/a
Product	documenso
Published	Jun 29, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / Documenso

2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/374551 vuldb.com: https://vuldb.com/vuln/374551/cti vuldb.com: https://vuldb.com/cve/CVE-2026-13543 vuldb.com: https://vuldb.com/submit/842579 github.com: https://github.com/documenso/documenso/issues/2758 github.com: https://github.com/documenso/documenso/pull/2837 github.com: https://github.com/documenso/documenso/

Credits

🔍 Jeetpal2007 (VulDB User) VulDB CNA Team