How severe is CVE-2024-29903?

CVE-2024-29903 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 none, and availability high.

Is CVE-2024-29903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-29903?

CVE-2024-29903 affects Sigstore Cosign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-29903?

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

Does CVE-2024-29903 have an EU (EUVD) identifier?

Yes. CVE-2024-29903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1167.

When was CVE-2024-29903 published?

CVE-2024-29903 was published on 2024-04-10 and last updated on 2026-06-17.

CVE-2024-29903

CVE-2024-29903 is a medium-severity vulnerability in Sigstore Cosign 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-1167
Weakness: CWE-770
Affected product: Sigstore Cosign
Published: 2024-04-10
Last modified: 2026-06-17

Description

Cosign provides code signing and transparency for containers and binaries. Prior to version 2.2.4, maliciously-crafted software artifacts can cause denial of service of the machine running Cosign thereby impacting all services on the machine. The root cause is that Cosign creates slices based on the number of signatures, manifests or attestations in untrusted artifacts. As such, the untrusted artifact can control the amount of memory that Cosign allocates. The exact issue is Cosign allocates excessive memory on the lines that creates a slice of the same length as the manifests. Version 2.2.4 contains a patch for the vulnerability.

Frequently asked questions

What is CVE-2024-29903?: Cosign provides code signing and transparency for containers and binaries. Prior to version 2.2.4, maliciously-crafted software artifacts can cause denial of service of the machine running Cosign thereby impacting all services on the machine. The root cause is that Cosign creates slices based on the number of signatures, manifests or attestations in untrusted artifacts. As such, the untrusted artifact can control the amount of memory that Cosign allocates. The exact issue is Cosign allocates excessive memory on the lines that creates a slice of the same length as the manifests. Version 2.2.4 contains a patch for the vulnerability.
How severe is CVE-2024-29903?: CVE-2024-29903 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 none, and availability high.
Is CVE-2024-29903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-29903?: CVE-2024-29903 affects Sigstore Cosign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-29903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-29903 have an EU (EUVD) identifier?: Yes. CVE-2024-29903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1167.
When was CVE-2024-29903 published?: CVE-2024-29903 was published on 2024-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sigstore:cosign:*:*:*:*:*:*:*:*

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