Linux · SUSE Linux Enterprise · Security advisory · March 18, 2026
SUSE-SU-2026:20904-1: cosign security update
SUSE-SU-2026:20904-1, 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.
High
CVEs closed
9
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0060
48th percentile
Priority of the 9 CVEs
Patch now 0
Urgent 0
High 2
Routine 7
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| cosign | sles 16.0 | 3.0.5-160000.1.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-23991 | cosign: github.com/theupdateframework/go-tuf/v2: denial of service due to invalid TUF metadata JSON returned | 7.5 | 0.0058 | None reported |
| High | CVE-2026-23992 | cosign: github.com/theupdateframework/go-tuf/v2: unauthorized modification to TUF metadata files due to a | 7.5 | 0.0022 | None reported |
| Routine | CVE-2025-58181 | apptainer: Fixed unbounded memory consumption in | 5.3 | 0.0060 | None reported |
| Routine | CVE-2025-11065 | grafana: Fixed sensitive information leak in logs (version 11.5.9) (bsc#1250616) | 5.3 | 0.0052 | None reported |
| Routine | CVE-2026-26958 | alloy: filippo.io/edwards25519: failure to initialize receiver in MultiScalarMult can produce invalid results | n/a | 0.0042 | None reported |
| Routine | CVE-2026-24137 | apptainer: github.com/sigstore/sigstore/pkg/tuf: legacy TUF client allows for arbitrary file writes with target | 5.8 | 0.0039 | None reported |
| Routine | CVE-2026-22772 | cosign: github.com/sigstore/fulcio: bypass MetaIssuer URL validation bypass can trigger SSRF to arbitrary | 5.3 | 0.0023 | None reported |
| Routine | CVE-2026-24122 | cosign: improper validation of certificates that outlive expired CA certificates (bsc#1258542). | 3.7 | 0.0022 | None reported |
| Routine | CVE-2026-22703 | cosign: Verification accepts any valid Rekor entry under certain conditions (bsc#1256496). | 5.5 | 0.0011 | None reported |
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