What’s Vulnerable › Vulnerabilities

CVE-2020-26800

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-01-11 · updated 2026-06-17
• Weakness: CWE-787

Description

A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service.

Affected products

• ethereum Aleth: through 1.8.0

References

• https://ethereum.org/en/about/
• https://github.com/ethereum/aleth
• https://github.com/ethereum/aleth/issues/5917
• https://ethereum.org/en/about/
• https://github.com/ethereum/aleth
• https://github.com/ethereum/aleth/issues/5917

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