What’s Vulnerable › Vulnerabilities
CVE-2026-42336: MaxKB: SSRF Bypass via DNS Rebinding in MaxKB OSS URL Fetch
- Severity: medium (CVSS 5.1 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-26 · updated 2026-07-23
- Weakness: CWE-367
Description
MaxKB is an open-source AI assistant for enterprise. MaxKB 2.8.0 and prior are vulnerable to a server-side request forgery (SSRF) bypass in the OSS file service URL fetch functionality due to inconsistent DNS resolution between validation and actual request execution, allowing attackers to access internal network services. This vulnerability is fixed in 2.8.1.
Affected products
- 1Panel-dev MaxKB: before 2.8.1
References
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