What is CVE-2026-22674?

CVE-2026-22674 is a medium-severity vulnerability in Hashgraph Guardian, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-06-18.

How severe is CVE-2026-22674?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Hashgraph Guardian

CVE-2026-22674

Hashgraph Guardian through 3.5.0, fixed in commit ba8c566, contains a stored cross-site scripting vulnerability that allows authenticated users with the STANDARD_REGISTRY role to inject malicious scripts by submitting a crafted companyName…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Hashgraph Guardian — versions 0, ba8c566807848cf84360716438056d8d8d2c8362

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-22674?: CVE-2026-22674 is a medium-severity vulnerability in Hashgraph Guardian, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-06-18.
How severe is CVE-2026-22674?: Medium severity. CVSS v3 base score is 4.8 out of 10.