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TI-2023-25462 Aliases CVE-2023-47122GHSA-xvrc-2wvh-49vc

Gitsign's Rekor public keys fetched from upstream API instead of local TUF client.

Priority LOW 24CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-347.

Summary

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 instance is unaffected. This issue was fixed in v0.8.0. No known workarounds are available.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00369 31st percentileScored 2026-11-07
Fix Fixed gitsign (sigstore): 0.8.0github.com/sigstore/gitsign (Go): 0.8.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
sigstoregitsign0.6.0 to before 0.8.00.8.0Patch availableCNA
—github.com/sigstore/gitsign (Go)0.6.0 to before 0.8.00.8.0Patch availableGHSA-xvrc-2wvh-49vc
  • gitsign Vendorsigstore Affected 0.6.0 to before 0.8.0 Fixed in 0.8.0 Patch available CNA
  • github.com/sigstore/gitsign (Go) Vendor— Affected 0.6.0 to before 0.8.0 Fixed in 0.8.0 Patch available GHSA-xvrc-2wvh-49vc

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sigstore:gitsign:*:*:*:*:*:go:*:*0.6.0 to before 0.8.0Vulnerablesigstore
  • cpe:2.3:a:sigstore:gitsign:*:*:*:*:*:go:*:* Versions 0.6.0 to before 0.8.0 Vulnerable ·sigstore

Remediation

  • Fix · CNA gitsign (sigstore) Fixed in 0.8.0
  • Fix · GHSA-xvrc-2wvh-49vc github.com/sigstore/gitsign (Go) Fixed in 0.8.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-47122
  2. 2026-10-03 Alias added: GHSA-xvrc-2wvh-49vc

References

Patch 3

Advisory 1

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences