# OPENSUSE-SU-2026:20386-1: cosign security update

OPENSUSE-SU-2026:20386-1, released March 18, 2026, fixes 9 CVEs in cosign (version 3.0.5-160000.1.1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/opensuse-su-2026-20386-1
- Platform: Linux
- Released: Mar 18, 2026
- Priority: High (Closes CVE-2026-23991, high severity)
- CVEs: 9, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/openSUSE-SU-2026:20386-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [cosign](https://patchblox.com/security/data/product/linux/cosign.md) | opensuse-leap 16.0 | 3.0.5-160000.1.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-23991](https://patchblox.com/security/data/cve/CVE-2026-23991.md) | High | golang-github-theupdateframework-go-tuf: go-tuf is a Go implementation of The Update Framework (TUF) | 7.5 | 0.0058 |  |
| [CVE-2026-23992](https://patchblox.com/security/data/cve/CVE-2026-23992.md) | High | golang-github-theupdateframework-go-tuf: go-tuf is a Go implementation of The Update Framework (TUF) | 7.5 | 0.0022 |  |
| [CVE-2025-58181](https://patchblox.com/security/data/cve/CVE-2025-58181.md) | Routine | golang-go.crypto: SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request,... | 5.3 | 0.0060 |  |
| [CVE-2025-11065](https://patchblox.com/security/data/cve/CVE-2025-11065.md) | Routine | alloy: This update for alloy fixes the following issues:  - update to 1.11.3: - CVE-2025-58058: Fixed memory leaks in xz | 5.3 | 0.0052 |  |
| [CVE-2026-26958](https://patchblox.com/security/data/cve/CVE-2026-26958.md) | Routine | golang-filippo-edwards25519: filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for building cryptogra... | n/a | 0.0042 |  |
| [CVE-2026-24137](https://patchblox.com/security/data/cve/CVE-2026-24137.md) | Routine | golang-github-sigstore-sigstore: sigstore framework is a common go library shared across sigstore services and clients | 5.8 | 0.0039 |  |
| [CVE-2026-22772](https://patchblox.com/security/data/cve/CVE-2026-22772.md) | Routine | golang-github-sigstore-fulcio: Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity | 5.3 | 0.0023 |  |
| [CVE-2026-24122](https://patchblox.com/security/data/cve/CVE-2026-24122.md) | Routine | cosign: Cosign provides code signing and transparency for containers and binaries | 3.7 | 0.0022 |  |
| [CVE-2026-22703](https://patchblox.com/security/data/cve/CVE-2026-22703.md) | Routine | cosign: Cosign provides code signing and transparency for containers and binaries | 5.5 | 0.0011 |  |

---

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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