- Issued:
- 2026-02-24
- Updated:
- 2026-02-24
RHSA-2026:3218 - Important: protobuf security update
Synopsis
Important: protobuf security update
Type/Severity
Security Advisory Important
Topic
An update for protobuf is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.
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
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 10.0 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - 4 years of updates | 10.0 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 10.0 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - 4 years of support | 10.0 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 10.0 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - 4 years of updates | 10.0 | s390x |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 10.0 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - 4 years of updates | 10.0 | aarch64 |
| Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support | 10.0 | x86_64 |
| Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support | 10.0 | ppc64le |
| Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support | 10.0 | s390x |
| Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support | 10.0 | aarch64 |
Updated Packages
- protobuf-debugsource-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-devel-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-debuginfo-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-compiler-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-lite-debuginfo-3.19.6-11.el10_0.1.x86_64.rpm
- python3-protobuf-debuginfo-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-lite-devel-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-compiler-3.19.6-11.el10_0.1.ppc64le.rpm
- protobuf-lite-devel-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-compiler-debuginfo-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-lite-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-debugsource-3.19.6-11.el10_0.1.ppc64le.rpm
- protobuf-devel-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-compiler-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-compiler-debuginfo-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-3.19.6-11.el10_0.1.ppc64le.rpm
- protobuf-debugsource-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-compiler-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-lite-debuginfo-3.19.6-11.el10_0.1.ppc64le.rpm
- python3-protobuf-3.19.6-11.el10_0.1.s390x.rpm
- python3-protobuf-debuginfo-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-lite-debuginfo-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-debuginfo-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-lite-debuginfo-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-compiler-debuginfo-3.19.6-11.el10_0.1.ppc64le.rpm
- protobuf-devel-3.19.6-11.el10_0.1.ppc64le.rpm
- python3-protobuf-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-devel-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-lite-devel-3.19.6-11.el10_0.1.ppc64le.rpm
- python3-protobuf-3.19.6-11.el10_0.1.ppc64le.rpm
- protobuf-debuginfo-3.19.6-11.el10_0.1.ppc64le.rpm
- protobuf-debuginfo-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-debugsource-3.19.6-11.el10_0.1.x86_64.rpm
- protobuf-lite-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-lite-3.19.6-11.el10_0.1.ppc64le.rpm
- protobuf-compiler-debuginfo-3.19.6-11.el10_0.1.s390x.rpm
- python3-protobuf-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-lite-3.19.6-11.el10_0.1.x86_64.rpm
- python3-protobuf-debuginfo-3.19.6-11.el10_0.1.ppc64le.rpm
- python3-protobuf-debuginfo-3.19.6-11.el10_0.1.s390x.rpm
- protobuf-lite-devel-3.19.6-11.el10_0.1.aarch64.rpm
- protobuf-3.19.6-11.el10_0.1.src.rpm
Fixes
CVEs
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.