gitsign may use incorrect Rekor entries during verification
gitsign may select the wrong Rekor entry to use during online verification when multiple entries are returned by the log.
Advisories for Golang/Github.com/Sigstore/Gitsign package
2024
gitsign may use incorrect Rekor entries during verification
gitsign may select the wrong Rekor entry to use during online verification when multiple entries are returned by the log.
2023
Gitsign's Rekor public keys fetched from upstream API instead of local TUF client.
Gitsign is software for keyless Git signing using Sigstore. In versions of gitsign starting with 0.6.0 and prior to 0.8.0, Rekor public keys were fetched via the Rekor API, instead of through the local TUF client. If the upstream Rekor server happened to be compromised, gitsign clients could potentially be tricked into trusting incorrect signatures. There is no known compromise the default public good instance (rekor.sigstore.dev) - anyone using this …