# RHSA-2026:19181: Security update for 8 packages

RHSA-2026:19181, released May 27, 2026, fixes 2 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-19181
- Platform: Linux
- Released: May 27, 2026
- Priority: High (Closes CVE-2026-27137, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:19181

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [go-toolset](https://patchblox.com/security/data/product/linux/go-toolset.md) | RHEL 9 | 0:1.26.2-1.el9_8 |
| [golang](https://patchblox.com/security/data/product/linux/golang.md) | RHEL 9 | 0:1.26.2-1.el9_8 |
| [golang-bin](https://patchblox.com/security/data/product/linux/golang-bin.md) | RHEL 9 | 0:1.26.2-1.el9_8 |
| [golang-docs](https://patchblox.com/security/data/product/linux/golang-docs.md) | RHEL 9 | 0:1.26.2-1.el9_8 |
| [golang-misc](https://patchblox.com/security/data/product/linux/golang-misc.md) | RHEL 9 | 0:1.26.2-1.el9_8 |
| [golang-race](https://patchblox.com/security/data/product/linux/golang-race.md) | RHEL 9 | 0:1.26.2-1.el9_8 |
| [golang-src](https://patchblox.com/security/data/product/linux/golang-src.md) | RHEL 9 | 0:1.26.2-1.el9_8 |
| [golang-tests](https://patchblox.com/security/data/product/linux/golang-tests.md) | RHEL 9 | 0:1.26.2-1.el9_8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-27137](https://patchblox.com/security/data/cve/CVE-2026-27137.md) | High | Incorrect enforcement of email constraints in crypto/x509 | 9.1 | 0.0066 |  |
| [CVE-2026-33810](https://patchblox.com/security/data/cve/CVE-2026-33810.md) | High | Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509 | 9.1 | 0.0035 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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