Kiteworks Core is vulnerable to Server-Side Request Forgery (SSRF)

published 2026-02-27 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-9066

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

accellion kiteworks 9.2.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 8 mo ago (2026-03-03)

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Affected products

kiteworks security-advisories

Classification

Weakness

CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action
CWE-918 Server-Side Request Forgery

References

github.com /kiteworks/security-advisories/security/advisories/GHSA-rmfx-6h9w-fq87
vendor-advisory

Sources

CVE List CVE-2026-28271
NVD CVE-2026-28271

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Summary