RHSA-2026:0761 - Security Advisory

Topic

An update is now available for the Red Hat build of Cryostat 4 on RHEL 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

An update is now available for the Red Hat build of Cryostat 4 on RHEL 9.

Security Fix(es):

• lz4-java: Information Disclosure via Insufficient Output Buffer Clearing (CVE-2025-66566)
• qs: Denial of Service via improper input validation in array parsing (CVE-2025-15284)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Cryostat 4 x86_64

Fixes

• BZ - 2419500 - CVE-2025-66566 lz4-java: lz4-java: Information Disclosure via Insufficient Output Buffer Clearing
• BZ - 2425946 - CVE-2025-15284 qs: qs: Denial of Service via improper input validation in array parsing

CVEs

• CVE-2024-5642
• CVE-2025-6069
• CVE-2025-6075
• CVE-2025-8291
• CVE-2025-15284
• CVE-2025-45582
• CVE-2025-58436
• CVE-2025-61915
• CVE-2025-66566
• CVE-2025-68973

References

• https://access.redhat.com/security/updates/classification/#important