CVE-2026-39395
cosign: Incorrect attestation verification due to malformed payloads or mismatched predicate types
CVE-2026-39395 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-39395, released April 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0025
16th percentile
Incorrect attestation verification due to malformed payloads or mismatched predicate types
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| cosign · Debian 14 | 2.6.3-1 | DEBIAN-CVE-2026-39395 | Apr 7, 2026 |
| cosign · opensuse-leap 16.0 | 3.0.6-160000.1.1 | OPENSUSE-SU-2026:21036-1 | Jun 22, 2026 |
| cosign · sles 15.7 | 3.0.6-150400.3.42.1 | SUSE-SU-2026:2365-1 | Jun 11, 2026 |
| cosign · sles 16.0 | 3.0.6-160000.1.1 | SUSE-SU-2026:22344-1 | Jun 22, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | OPENSUSE-SU-2026:21483-1 | Jul 30, 2026 |
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