Hashgraph Guardian through 3.6.0, 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 value via the branding configuration API endpoint. Attackers can exploit the unsanitized innerHTML assignment in the branding service to execute arbitrary JavaScript in the browser of every authenticated user on every page load.
CVE-2026-22674
Score 4.8 from GitHub Security Advisory published 2026-06-19. a secondary CVSS source baseline 4.8; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.8
- EG Score
- 4.8(high)
- EPSS
- 7.5%
- KEV
- Not listed
Published
June 18, 2026
Last Modified
June 23, 2026
Advisory Details (3)
Auto-updated Jun 18, 2026Hashgraph Guardian Stored XSS via branding companyName field | Advisories | VulnCheck
https://www.vulncheck.com/advisories/hashgraph-guardian-stored-xss-via-branding-companyname-fieldfix: prevent stored XSS in branding company name (CVE-2026-22674)
Fix merged in hashgraph/guardian PR #6190 on 2026-06-15 — awaiting tagged release
https://github.com/hashgraph/guardian/pull/6190commit ba8c56680784 (hashgraph/guardian)
Fix landed in hashgraph/guardian commit ba8c56680784 — awaiting tagged release
https://github.com/hashgraph/guardian/commit/ba8c566807848cf84360716438056d8d8d2c8362Vendor Advisories for CVE-2026-22674(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 23× in last 7d / 59× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 12:46 UTCEG score recompute
- 2026-07-06 12:46 UTCGHSA enrichment
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 12:00 UTCEG score recompute
- 2026-07-05 12:00 UTCGHSA enrichment
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 11:14 UTCEG score recompute
- 2026-07-04 11:14 UTCGHSA enrichment
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-03 10:26 UTCEG score recompute
- 2026-07-03 10:26 UTCGHSA enrichment
- 2026-07-02 09:36 UTCEG score recompute
- 2026-07-02 09:36 UTCGHSA enrichment
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 08:50 UTCEG score recompute
- 2026-07-01 08:50 UTCGHSA enrichment
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 08:04 UTCEG score recompute
- 2026-06-30 08:04 UTCGHSA enrichment
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- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-29 07:18 UTCEG score recompute
- 2026-06-29 07:18 UTCGHSA enrichment
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 06:33 UTCEG score recompute
- 2026-06-28 06:33 UTCGHSA enrichment
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-27 05:48 UTCEG score recompute
- 2026-06-27 05:48 UTCGHSA enrichment
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-26 05:02 UTCEG score recompute
- 2026-06-26 05:02 UTCGHSA enrichment
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-25 04:16 UTCEG score recompute
- 2026-06-25 04:16 UTCGHSA enrichment
- 2026-06-24 14:05 UTCEPSS rescore
- 2026-06-24 14:05 UTCEPSS rescore
- 2026-06-24 03:27 UTCEG score recompute
- 2026-06-24 03:27 UTCGHSA enrichment
- 2026-06-23 21:33 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-23 02:42 UTCEG score recompute
- 2026-06-23 02:42 UTCGHSA enrichment
- 2026-06-22 01:50 UTCEG score recompute
- 2026-06-22 01:50 UTCGHSA enrichment
- 2026-06-21 01:03 UTCEG score recompute
- 2026-06-21 01:03 UTCGHSA enrichment
- 2026-06-20 00:14 UTCEG score recompute
- 2026-06-20 00:13 UTCGHSA enrichment
- 2026-06-18 23:24 UTCEG score recompute
- 2026-06-18 23:22 UTCNVD updatefirst tracked
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Frequently asked(5)
What is CVE-2026-22674?
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What is the CVSS score of CVE-2026-22674?
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Dependency Blast Radius
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