Read the docs
TI-2024-30375 Aliases CVE-2024-45304

OwnableTwoStep allows a pending owner to accept ownership after the original owner has…

Priority LOW 29CWE-670Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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 to simulate leaving a contract without an owner, to later regain ownership by previously having proposed himself as a pending owner. This issue has been addressed in release version 0.16.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00479 41st percentileScored 2026-11-07
Fix Fixed cairo-contracts (OpenZeppelin): 0.16.0

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
OpenZeppelincairo-contractsbefore 0.16.00.16.0Patch availableCNA
  • cairo-contracts VendorOpenZeppelin Affected before 0.16.0 Fixed in 0.16.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:cairo:*:*before 0.16.0VulnerableOpenZeppelin
  • cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:cairo:*:* Versions before 0.16.0 Vulnerable ·OpenZeppelin

Remediation

  • Fix · CNA cairo-contracts (OpenZeppelin) Fixed in 0.16.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-45304

References

Patch 1

Advisory 1

Other 1

  • TI-2022-13196 OpenZeppelin Contracts for Cairo account cannot process transactions on Goerli CVSS 3.1MEDIUM 6.5
  • TI-2021-16554 TimelockController vulnerability in OpenZeppelin Contracts CVSS 3.1CRITICAL 10.0
  • TI-2021-16553 TimelockController vulnerability in OpenZeppelin Contracts CVSS 3.1CRITICAL 10.0
  • TI-2021-18096 UUPSUpgradeable vulnerability in OpenZeppelin Contracts CVSS 3.1CRITICAL 9.8
  • TI-2022-13238 GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals in @openzeppelin/contracts CVSS 3.1HIGH 7.5
  • TI-2022-13212 OpenZeppelin Contracts's ERC165Checker may revert instead of returning false CVSS 3.1HIGH 7.5
See all 19 →

Sources

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