Answer in brief
CVE-2023-32059 records a High severity (CVSS 7.5) vulnerability in Vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls. The current sources do not mark it as known exploited. The current feed maps vyper (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps vyper (pypi). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| vyperpypi | >=0 <0.3.8 | 0.3.8 |
Published upstream
May 12, 2023
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
### Impact Internal calls to internal functions with more than 1 default argument are compiled incorrectly. Depending on the number of arguments provided in the call, the defaults are added not right-to-left, but left-to-right. If the types are incompatible, typechecking is bypassed. In the `bar()` function in the following code, `self.foo(13)` is compiled to `self.foo(13,12)` instead of `self.foo(13,1337)`. ```vyper @internal def foo(a:uint256 = 12, b:uint256 = 1337): pass @internal def bar(): self.foo(13) ``` note that at the time of publication, the ability to pass kwargs to internal functions is an undocumented feature that does not seem to be widely used. ### Patches patched in c3e68c302aa6e1429946473769dd1232145822ac ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_
Quoted source text, attributed separately from HOL analysis.