CVE-2026-7679 | THREATINT

Description

A security flaw has been discovered in YunaiV yudao-cloud up to 2026.01. This impacts the function getAccessToken of the file yudao-module-system-biz/src/main/java/io/github/ruoyi/common/oauth2/service/impl/OAuth2TokenServiceImpl.java. Performing a manipulation results in improper authentication. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-05-02 | Published 2026-05-03 | Updated 2026-05-04 | Assigner VulDB

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Improper Authentication

Product status

2026.01

affected

Timeline

2026-05-02:	Advisory disclosed
2026-05-02:	VulDB entry created
2026-05-02:	VulDB entry last update

Credits

9str0il (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/360832 (VDB-360832 | YunaiV yudao-cloud OAuth2TokenServiceImpl.java getAccessToken improper authentication) vdb-entry technical-description

vuldb.com/vuln/360832/cti (VDB-360832 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/800866 (Submit #800866 | YunaiV yudao-cloud up to 2026.01 Authentication Bypass by Primary Weakness) third-party-advisory

github.com/9str0IL/CVE/issues/1 exploit issue-tracking

cve.org (CVE-2026-7679)

nvd.nist.gov (CVE-2026-7679)

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