CVE-2024-24559
CVE-2024-24559 is a low-severity vulnerability in Vyperlang Vyper with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-327.
Key facts
- Severity: Low (CVSS 3.x base score 3.7)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-0174
- Weakness: CWE-327
- Affected product: Vyperlang Vyper
- Published:
- Last modified:
Description
Vyper is a Pythonic Smart Contract Language for the EVM. There is an error in the stack management when compiling the `IR` for `sha3_64`. Concretely, the `height` variable is miscalculated. The vulnerability can't be triggered without writing the `IR` by hand (that is, it cannot be triggered from regular vyper code). `sha3_64` is used for retrieval in mappings. No flow that would cache the `key` was found so the issue shouldn't be possible to trigger when compiling the compiler-generated `IR`. This issue isn't triggered during normal compilation of vyper code so the impact is low. At the time of publication there is no patch available.
Frequently asked questions
- What is CVE-2024-24559?
- Vyper is a Pythonic Smart Contract Language for the EVM. There is an error in the stack management when compiling the `IR` for `sha3_64`. Concretely, the `height` variable is miscalculated. The vulnerability can't be triggered without writing the `IR` by hand (that is, it cannot be triggered from regular vyper code). `sha3_64` is used for retrieval in mappings. No flow that would cache the `key` was found so the issue shouldn't be possible to trigger when compiling the compiler-generated `IR`. This issue isn't triggered during normal compilation of vyper code so the impact is low. At the time of publication there is no patch available.
- How severe is CVE-2024-24559?
- CVE-2024-24559 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2024-24559 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-24559?
- CVE-2024-24559 affects Vyperlang Vyper. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-24559?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-24559 have an EU (EUVD) identifier?
- Yes. CVE-2024-24559 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0174.
- When was CVE-2024-24559 published?
- CVE-2024-24559 was published on 2024-02-05 and last updated on 2026-06-17.
References
- https://github.com/vyperlang/vyper/blob/c150fc49ee9375a930d177044559b83cb95f7963/vyper/ir/compile_ir.py#L585-L586
- https://github.com/vyperlang/vyper/security/advisories/GHSA-6845-xw22-ffxv
Affected products (1)
- cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*
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