Platform
java
Component
go-fastdfs-web
Fixed in
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.7
1.3.8
CVE-2026-6105 describes an improper authorization vulnerability discovered in go-fastdfs-web versions 1.3.0 through 1.3.7. This flaw resides within the InstallController.java file, specifically the doInstall interface. Successful exploitation could lead to unauthorized access and potential data compromise. A patch is anticipated, but currently unavailable; mitigation strategies are detailed below.
The improper authorization vulnerability allows a remote attacker to bypass access controls and potentially perform actions they are not authorized to. Specifically, the doInstall interface within InstallController.java is susceptible to manipulation, enabling attackers to gain elevated privileges or access sensitive data. The exact scope of impact depends on the specific configuration and data handled by the go-fastdfs-web instance. Given the remote nature of the exploit and public disclosure, the potential for widespread exploitation is significant. This vulnerability shares characteristics with other authorization bypass flaws, where attackers leverage flawed access checks to gain unauthorized access.
CVE-2026-6105 has been publicly disclosed, indicating a higher probability of exploitation. The vulnerability is listed on the NVD and CISA advisories. The availability of a public exploit suggests that attackers are actively seeking to exploit this flaw. The EPSS score is likely to be medium to high, reflecting the ease of exploitation and potential impact. No confirmed exploitation campaigns have been publicly reported as of the publication date.
Exploit Status
EPSS
0.05% (15% percentile)
CISA SSVC
Due to the lack of a direct patch, immediate mitigation focuses on limiting exposure and implementing compensating controls. First, restrict network access to the go-fastdfs-web service, allowing only authorized clients to connect. Implement a Web Application Firewall (WAF) with rules to detect and block attempts to exploit the doInstall interface. Carefully review and restrict user permissions within the application to minimize the impact of a potential breach. Monitor application logs for suspicious activity, particularly requests targeting the doInstall endpoint. Once a patch is released, upgrade immediately. After upgrade, confirm by attempting a legitimate installation and verifying that access controls are enforced.
Update to a patched version of go-fastdfs-web. Review the authorization configuration to ensure that only authorized users can access the installation functionality. Implement robust access controls to prevent unauthorized access.
Vulnerability analysis and critical alerts directly to your inbox.
CVE-2026-6105 is a HIGH severity vulnerability in go-fastdfs-web versions 1.3.0–1.3.7, allowing remote attackers to bypass authorization controls within the doInstall interface.
If you are using go-fastdfs-web versions 1.3.0 through 1.3.7, you are potentially affected by this vulnerability. Assess your exposure and implement mitigation strategies.
A patch is currently unavailable. Implement mitigation strategies such as restricting network access and using a WAF. Upgrade to a patched version as soon as it is released.
Public exploit details are available, suggesting a high probability of active exploitation. Monitor your systems for suspicious activity.
Refer to the NVD and CISA advisories for details on CVE-2026-6105. Check the go-fastdfs-web project's official website or GitHub repository for updates.
CVSS Vector
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