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CVE-2024-29903: Cosign provides code signing and transparency for containers and binaries

34
Routine
MEDIUM 4.2UPGRADE

CVE-2024-29903 is a medium-severity flaw (CVSS 4.2) affecting cosign. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score4.2 (Medium)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededHigh
User interactionRequired
EPSS exploit chance0.9% (top 42%)
CISA exploited listNo
WeaknessCWE-770
Published2024-04-10
Last modified2026-06-17
Publisher (CNA): GitHub, Inc. · Vendor: sigstore

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

sigstore cosign UPGRADE
Affected: < 2.2.4
Fixed in: 2.2.4
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy cosign || rpm -q cosign || cosign --version
2. UPGRADE to 2.2.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade cosign
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade cosign
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-29903?

cosign: upgrade to 2.2.4. Exact commands for each OS are on this page.

Is CVE-2024-29903 being exploited?

CVE-2024-29903 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-29903 affect?

CVE-2024-29903 affects cosign. Severity is medium (CVSS 4.2). 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 machin

How urgent is CVE-2024-29903?

Priority 34/100. Public exploit reference

Related CVEs

References

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