How severe is CVE-2023-47122?

CVE-2023-47122 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-47122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-47122?

CVE-2023-47122 affects Sigstore Gitsign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-47122?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-47122 published?

CVE-2023-47122 was published on 2023-11-10 and last updated on 2026-06-17.

CVE-2023-47122

CVE-2023-47122 is a medium-severity vulnerability in Sigstore Gitsign with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Sigstore Gitsign
Published: 2023-11-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-47122?: 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.
How severe is CVE-2023-47122?: CVE-2023-47122 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-47122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-47122?: CVE-2023-47122 affects Sigstore Gitsign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-47122?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-47122 published?: CVE-2023-47122 was published on 2023-11-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sigstore:gitsign:*:*:*:*:*:go:*:*

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