CVE - CVE-2025-46834

CVE-ID
CVE-2025-46834	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Alchemy's Modular Account is a smart contract account that is compatible with ERC-4337 and ERC-6900. In versions on the 2.x branch prior to commit 5e6f540d249afcaeaf76ab95517d0359fde883b0, owners of Modular Accounts can grant session keys (scoped external keys) to external parties and would use the allowlist module to restrict which external contracts can be accessed by the session key. There is a bug in the allowlist module in that we don't check for the `executeUserOp` -> `execute` or `executeBatch` path, effectively allowing any session key to bypass any access control restrictions set on the session key. Session keys are able to access ERC20 and ERC721 token contracts amongst others, transferring all tokens from the account out andonfigure the permissions on external modules on session keys. They would be able to remove all restrictions set on themselves this way, or rotate the keys of other keys with higher privileges into keys that they control. Commit 5e6f540d249afcaeaf76ab95517d0359fde883b0 fixes this issue.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/alchemyplatform/modular-account/commit/5e6f540d249afcaeaf76ab95517d0359fde883b0 URL:https://github.com/alchemyplatform/modular-account/commit/5e6f540d249afcaeaf76ab95517d0359fde883b0 MISC:https://github.com/alchemyplatform/modular-account/security/advisories/GHSA-jhp7-7cq9-m4pv URL:https://github.com/alchemyplatform/modular-account/security/advisories/GHSA-jhp7-7cq9-m4pv
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20250430	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250430)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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