OpenZeppelin Contracts contains Incorrect Calculation
Priority LOW 30CWE-682Published · 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 · CNA. Fix status from CNA and GitHub.
Summary
OpenZeppelin Contracts is a library for secure smart contract development. The ERC721Consecutive contract designed for minting NFTs in batches does not update balances when a batch has size 1 and consists of a single token. Subsequent transfers from the receiver of that token may overflow the balance as reported by `balanceOf`. The issue exclusively presents with batches of size 1. The issue has been patched in 4.8.2.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00713 53rd percentileScored 2026-11-07
Fix Fixed openzeppelin-contracts (OpenZeppelin): 4.8.2@openzeppelin/contracts (npm): 4.8.2+1 more product
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OpenZeppelin | openzeppelin-contracts | 4.8.0 to before 4.8.2 | 4.8.2 | Patch available | CNA |
| — | @openzeppelin/contracts (npm) | 4.8.0 to before 4.8.2 | 4.8.2 | Patch available | GHSA-878m-3g6q-594q |
| — | @openzeppelin/contracts-upgradeable (npm) | 4.8.0 to before 4.8.2 | 4.8.2 | Patch available | GHSA-878m-3g6q-594q |
- openzeppelin-contracts VendorOpenZeppelin Affected 4.8.0 to before 4.8.2 Fixed in 4.8.2 Patch available CNA
- @openzeppelin/contracts (npm) Vendor— Affected 4.8.0 to before 4.8.2 Fixed in 4.8.2 Patch available GHSA-878m-3g6q-594q
- @openzeppelin/contracts-upgradeable (npm) Vendor— Affected 4.8.0 to before 4.8.2 Fixed in 4.8.2 Patch available GHSA-878m-3g6q-594q
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:* | 4.8.0 to before 4.8.2 | Vulnerable | OpenZeppelin |
| cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:* | 4.8.0 to before 4.8.2 | Vulnerable | OpenZeppelin |
- cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:* Versions 4.8.0 to before 4.8.2 Vulnerable ·OpenZeppelin
- cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:* Versions 4.8.0 to before 4.8.2 Vulnerable ·OpenZeppelin
Remediation
- Fix · CNA openzeppelin-contracts (OpenZeppelin) Fixed in 4.8.2
- Fix · GHSA-878m-3g6q-594q @openzeppelin/contracts (npm) Fixed in 4.8.2 Advisory →
- Fix · GHSA-878m-3g6q-594q @openzeppelin/contracts-upgradeable (npm) Fixed in 4.8.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26488
- 2026-10-03 Alias added: GHSA-878m-3g6q-594q
References
Advisory 2
More OpenZeppelin Contracts vulnerabilities
- 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
Sources
- CVE-2023-26488 · CVE Program
- CVE-2023-26488 · NVD
- FIRST EPSS
- GHSA-878m-3g6q-594q · GitHub Advisory Database · CC BY 4.0
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