Medium severity · published Feb 27, 2026
CVE-2026-28271
Kiteworks Core is vulnerable to Server-Side Request Forgery (SSRF)
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration functionality allows bypassing of SSRF protections through DNS rebinding attacks. Malicious administrators could exploit this to access internal services that should be restricted. Version 9.2.0 contains a patch for the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · kiteworks
< 9.2.0 · source: vendor
KI
Kiteworks · Accellion
before 9.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28271
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28271
Vendor Advisory
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-rmfx-6h9w-fq87
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