RHSA-2026:3097 - Security Advisory

Topic

An update for protobuf is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

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

The protobuf packages provide Protocol Buffers, Google's data interchange format. Protocol Buffers can encode structured data in an efficient yet extensible format, and provide a flexible, efficient, and automated mechanism for serializing structured data.

Security Fix(es):

• python: protobuf: Protobuf: Denial of Service due to recursion depth bypass (CVE-2026-0994)

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

For details on how to apply this update, which includes the changes described in this advisory, refer to:

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

Affected Products

• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.0 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.0 s390x

Fixes

• BZ - 2432398 - CVE-2026-0994 python: protobuf: Protobuf: Denial of Service due to recursion depth bypass

CVEs

• CVE-2026-0994

References

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