CVE-2023-37902

Vyper is a Pythonic programming language that targets the Ethereum Virtual Machine (EVM). Prior to version 0.3.10, the ecrecover precompile does not fill the output buffer if the signature does not verify. However, the ecrecover builtin will still return whatever is at memory location 0. This means that the if the compiler has been convinced to write to the 0 memory location with specially crafted data (generally, this can happen with a hashmap access or immutable read) just before the ecrecover, a signature check might pass on an invalid signature. Version 0.3.10 contains a patch for this issue.

• CWE-252

• https://github.com/vyperlang/vyper/commit/019a37ab98ff53f04fecfadf602b6cd5ac748f7fPatch
• https://github.com/vyperlang/vyper/security/advisories/GHSA-f5x6-7qgp-jhf3Exploit, Third Party Advisory
• https://github.com/vyperlang/vyper/commit/019a37ab98ff53f04fecfadf602b6cd5ac748f7fPatch
• https://github.com/vyperlang/vyper/security/advisories/GHSA-f5x6-7qgp-jhf3Exploit, Third Party Advisory

Published

Jul 25, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2023-37897Grav is a file-based Web-platform built in PHP. Grav is subj…8.8
• CVE-2023-37898Joplin is a free, open source note taking and to-do applicat…5.4
• CVE-2023-37899Feathersjs is a framework for creating web APIs and real-tim…7.5
• CVE-2023-3790A vulnerability has been found in Boom CMS 8.0.7 and classif…5.4
• CVE-2023-37900Crossplane is a framework for building cloud native control …2.7
• CVE-2023-37901Indico is an open source a general-purpose, web based event …5.4
• CVE-2023-37903vm2 is an open source vm/sandbox for Node.js. In vm2 for ver…10
• CVE-2023-37904Discourse is an open source discussion platform. Prior to ve…3.1
• CVE-2023-37905ckeditor-wordcount-plugin is an open source WordCount Plugin…6.1
• CVE-2023-37906Discourse is an open source discussion platform. Prior to ve…4.3
• CVE-2023-37907Cryptomator is data encryption software for users who store …7.8
• CVE-2023-37908XWiki Rendering is a generic Rendering system that converts …9.6