# OPENSUSE-SU-2026:21663-1: gh security update

OPENSUSE-SU-2026:21663-1, released August 26, 2026, fixes 5 CVEs in gh (version 2.98.0-bp160.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/opensuse-su-2026-21663-1
- Platform: Linux
- Released: Aug 26, 2026
- Priority: Urgent (Closes CVE-2026-39821, rated Critical)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/openSUSE-SU-2026:21663-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [gh](https://patchblox.com/security/data/product/linux/gh.md) | opensuse-leap 16.0 | 2.98.0-bp160.1.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-39821](https://patchblox.com/security/data/cve/CVE-2026-39821.md) | Urgent | Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna | 10.0 | 0.0183 |  |
| [CVE-2026-64654](https://patchblox.com/security/data/cve/CVE-2026-64654.md) | Routine | GitHub CLI: Terminal escape sequence injection in multiple `gh` commands | 5.3 | 0.0077 |  |
| [CVE-2026-64653](https://patchblox.com/security/data/cve/CVE-2026-64653.md) | Routine | GitHub CLI: Unescaped variable components in request URLs could allow path traversal | 5.1 | 0.0051 |  |
| [CVE-2026-64655](https://patchblox.com/security/data/cve/CVE-2026-64655.md) | Routine | GitHub CLI: Attestation Verification Bypass via Unescaped Regex Metacharacters in SAN Matching | 2.1 | 0.0034 |  |
| [CVE-2026-64652](https://patchblox.com/security/data/cve/CVE-2026-64652.md) | Routine | GitHub CLI: Partial token disclosure in `gh auth status` output | 3.3 | 0.0016 |  |

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Data as of 2026-11-10T07:50:38Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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