CVE-2024-45304: Cairo-Contracts are OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup

Q: How do I fix CVE-2024-45304?

contracts: upgrade to 0.16.0. Exact commands for each OS are on this page.

Q: Is CVE-2024-45304 being exploited?

CVE-2024-45304 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-45304 affect?

CVE-2024-45304 affects contracts. Severity is medium (CVSS 5.3). Cairo-Contracts are OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup. This vulnerability can lead to unauthorized ownership transfer, contrary to the original owner's intention of leaving the contract without

Q: How urgent is CVE-2024-45304?

Priority 29/100. No elevated risk signals yet.

Routine

MEDIUM 5.3UPGRADE

CVE-2024-45304 is a medium-severity flaw (CVSS 5.3) affecting contracts. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cairo-Contracts are OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup. This vulnerability can lead to unauthorized ownership transfer, contrary to the original owner's intention of leaving the contract without an owner. It introduces a security risk where an unintended party (pending owner) can gain control of the contract after the original owner has renounced ownership. This could also be used by a malicious owner

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-670
Published	2024-08-31
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: openzeppelin

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

Am I affected?

Timeline

2024-08-31 00:15 UTCPublished CVE record published
2026-06-17 07:53 UTCUpdated Record last modified

openzeppelin contracts UPGRADE

Affected: < 0.16.0

Fixed in: 0.16.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy contracts || rpm -q contracts || contracts --version

2. UPGRADE to 0.16.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade contracts

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade contracts

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-2024-45304?

contracts: upgrade to 0.16.0. Exact commands for each OS are on this page.

Is CVE-2024-45304 being exploited?

CVE-2024-45304 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-2024-45304 affect?

CVE-2024-45304 affects contracts. Severity is medium (CVSS 5.3). Cairo-Contracts are OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup. This vulnerability can lead to unauthorized ownership transfer, contrary to the original owner's intention of leaving the contract without

How urgent is CVE-2024-45304?

Priority 29/100. No elevated risk signals yet.

Related CVEs

CVE-2024-27094 MEDIUM 6.5 UPGRADE UPGRADE OpenZeppelin Contracts is a library for secure smart contract development
CVE-2023-49798 MEDIUM 5.9 DOWNGRADE DOWNGRADE OpenZeppelin Contracts is a library for smart contract development
CVE-2023-34459 MEDIUM 5.3 UPGRADE UPGRADE OpenZeppelin Contracts is a library for smart contract development
CVE-2023-34234 MEDIUM 5.3 UPGRADE UPGRADE OpenZeppelin Contracts is a library for smart contract development

References

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