# RHSA-2026:3218: protobuf security update

RHSA-2026:3218, released January 23, 2026, fixes 1 CVE in protobuf (version 3.19.6-11.el10_0.1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-3218
- Platform: Linux
- Released: Jan 23, 2026
- Priority: High (Closes CVE-2026-0994, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:3218

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [protobuf](https://patchblox.com/security/data/product/linux/protobuf.md) | RHEL 10 | 3.19.6-11.el10_0.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-0994](https://patchblox.com/security/data/cve/CVE-2026-0994.md) | High | protobuf: A denial-of-service (DoS) vulnerability exists in google.protobuf.json_format.ParseDict() in Python, where the max_re... | 7.5 | 0.0071 |  |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo