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CVE-2026-28390

CVE Details

Visit the official vulnerability details page for CVE-2026-28390 to learn more.

Initial Publication

04/07/2026

Last Update

04/10/2026

Third Party Dependency

libcrypto3

NIST CVE Summary

Issue summary: During processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo a NULL pointer dereference can happen.

Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptographic operations occur resulting in Denial of Service.

When a CMS EnvelopedData message that uses KeyTransportRecipientInfo with RSA-OAEP encryption is processed, the optional parameters field of RSA-OAEP SourceFunc algorithm identifier is examined without checking for its presence. This results in a NULL pointer dereference if the field is missing.

Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable.

The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

CVE Severity

7.5

Our Official Summary

Investigation is ongoing to determine how this vulnerability affects our products.

Status

Undergoing Analysis

Affected Products & Versions

VersionPaletteAIPaletteAI VerteX
1.1.0-rc.1⚠️ Impacted⚠️ Impacted
1.0.7⚠️ Impacted⚠️ Impacted

Revision History

No revisions available.