Upgrade cosign installer to v4.1.2 and pin cosign version#83
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Updated cosign installer to version 4.1.2 and specified cosign release version 3.0.6.
marcschaeferger
requested review from
miloschwartz and
oschwartz10612
as code owners
oschwartz10612
approved these changes
May 16, 2026
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Description
Updates the Cosign installer workflow usage and explicitly pins the installed Cosign binary to
v3.0.6.Why
Cosign versions below
3.0.6are affected by CVE-2026-39395. While this workflow was not explicitly pinned to an older vulnerable Cosign binary, the installed Cosign version was implicit and therefore less deterministic.Changes
sigstore/cosign-installertov4.1.2https://github.com/sigstore/cosign-installer/releases/tag/v4.1.2cosign-release: v3.0.6References