Medium severity · published Sep 21, 2026
CVE-2026-77522
MaxKB: Authenticated full-read SSRF via the knowledge web-document import/sync crawler (Fork.fork requests.get, no internal-IP guard, non-blind)
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
MaxKB is an open-source AI assistant for enterprise. In version 2.10.3-lts and earlier, the knowledge web-document import and synchronization crawler passes an authenticated workspace user's URL to Fork.fork, which calls requests.get with verify=False and without restricting schemes, loopback, link-local, private, or reserved addresses. The response body is converted into imported document content, allowing a low-privileged user to read cloud metadata or internal HTTP services through the MaxKB server. No fixed version is available as of this review.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
MaxKB · 1Panel-dev
<= 2.10.3-lts · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77522
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77522
github.com
https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-ffxw-frpx-8rww
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