HOMEVULNERABILITIESCVE-2023-26488
MEDIUM

CVE-2023-26488

CWE-682Published: March 3, 2023· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2023-26488 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

openzeppelin2 product(s)
contractscontracts upgradeable
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/OpenZeppelin/openzeppelin-contracts/commit/167bf67ed3907f4a674043496019fa346cee7705
PATCHhttps://github.com/OpenZeppelin/openzeppelin-contracts/commit/167bf67ed3907f4a674043496019fa346cee7705
ADVISORYhttps://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-878m-3g6q-594q
ADVISORYhttps://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-878m-3g6q-594q

All References (6)

→
https://github.com/OpenZeppelin/openzeppelin-contracts/commit/167bf67ed3907f4a674043496019fa346cee7705Patch
→
https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.2Release Notes
→
https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-878m-3g6q-594qThird Party Advisory
→
https://github.com/OpenZeppelin/openzeppelin-contracts/commit/167bf67ed3907f4a674043496019fa346cee7705Patch
→
https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.2Release Notes
→
https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-878m-3g6q-594qThird Party Advisory

Quick Facts

CVE IDCVE-2023-26488
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-682
CISA KEVNo
Affected1 vendor(s)
PublishedMar 3, 2023

Related CVEs (CWE-682)

CVE-2022-30600
9.8
CVE-2021-44847
9.8
CVE-2026-1229
9.8
CVE-2024-36736
9.8
CVE-2020-0221
9.8
CVE-2018-8319
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-26488 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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