CVE-2024-49364
CVE-2024-49364 is a high-severity vulnerability with a CVSS 4.0 base score of 8.1. 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-522.
Key facts
- Severity: High (CVSS 4.0 base score 8.1)
- EPSS exploit prediction: 0% (24th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-54990
- Weakness: CWE-522
- Published:
- Last modified:
Description
tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a private key can be extracted on signing a malicious JSON-stringifiable object, when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. The Buffer.isBuffer check can be bypassed, resulting in k reuse for different messages, leading to private key extraction over a single invalid message (and a second one for which any message/signature could be taken, e.g. previously known valid one). This issue has been patched in version 1.1.7.
Frequently asked questions
- What is CVE-2024-49364?
- tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a private key can be extracted on signing a malicious JSON-stringifiable object, when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. The Buffer.isBuffer check can be bypassed, resulting in k reuse for different messages, leading to private key extraction over a single invalid message (and a second one for which any message/signature could be taken, e.g. previously known valid one). This issue has been patched in version 1.1.7.
- How severe is CVE-2024-49364?
- CVE-2024-49364 has a CVSS 4.0 base score of 8.1, rated high severity.
- Is CVE-2024-49364 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2024-49364?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-49364 have an EU (EUVD) identifier?
- Yes. CVE-2024-49364 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54990.
- When was CVE-2024-49364 published?
- CVE-2024-49364 was published on 2025-07-01 and last updated on 2026-06-17.
References
- https://github.com/bitcoinjs/tiny-secp256k1/pull/140
- https://github.com/bitcoinjs/tiny-secp256k1/security/advisories/GHSA-7mc2-6phr-23xc
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