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WS-2023-0256

Date: August 19, 2025

In PeriodicVestingAccount, defined in x/auth in Cosmos-SDK, an attacker can initialize a victim's account as a malicious vesting account, which allows deposits but does not allow withdrawals. When the user then deposits funds into their account, those funds are locked forever, and the user is not able to withdraw them.

Language: Go

Severity Score

Related Resources (8)

https://github.com/cosmos/cosmos-sdk/blob/d4b7164de5d8391e6aa644d8ea84e07396dd9653/RELEASE_NOTES.md#cosmos-sdk-v04613-release-notes
https://github.com/cosmos/cosmos-sdk
https://github.com/cosmos/cosmos-sdk/pull/16466
https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-j2cr-jc39-wpx5
https://github.com/cosmos/cosmos-sdk/blob/cfc757dc5043fb2758c47c146d2912fd010c1a45/RELEASE_NOTES.md#cosmos-sdk-v0473-release-notes
https://github.com/cosmos/cosmos-sdk/commit/fd90480b0a922611e366552751a9037e309d8410
https://forum.cosmos.network/t/cosmos-sdk-security-advisory-barberry/10825
https://www.mend.io/vulnerability-database/WS-2023-0256

Severity Score

Weakness Type (CWE)

Improper Authorization

CWE-285

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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