CVE-2026-54821
High
Published: 25 June 2026
Published
25 June 2026
Modified
26 June 2026
KEV Added
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Patch
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CVSS Score v3.1
7.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
EPSS Score
0.0026
17.7th percentile
Summary
CVE-2026-54821 is a high-severity Insertion of Sensitive Information Into Sent Data (CWE-201) vulnerability. Its CVSS base score is 7.4 (High).
Operationally, ranked at the 17.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-39363
Vulnerability details
Subscriber Sensitive Data Exposure in Visual Link Preview <= 2.3.1 versions.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
addresses: CWE-201
Embedding taints allows detection when sensitive data is inserted into outbound or sent data streams.