CVE-2024-49365 tiny-secp256k1 allows for verify() bypass when running in bundled environment
Attackers can bypass signature verification in tiny-secp256k1 by exploiting a Buffer check flaw in specific bundled environments, leading to false-positive validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-49365?
CVE-2024-49365 is a high-severity vulnerability in bitcoinjs tiny-secp256k1, published on 1 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a malicious JSON-stringifyable message can be made passing on verify(), when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. Buffer.isBuffer check can be bypassed, resulting in strange objects being accepted as a message, and those messages could trick verify() into returning false-positive true values. This issue has been patched in version 1.1.7.
Weakness: CWE-347
Which versions are affected by CVE-2024-49365?
2 open source packages ship an affected version, including tiny-secp256k1.
| Package | Affected | Fixed in |
|---|---|---|
tiny-secp256k1 npm | All versions | 1.1.7 |
tiny-secp256k1 npm | All versions | 1.1.7 |
How do I fix CVE-2024-49365?
Upgrade tiny-secp256k1 to 1.1.7 or later.
Is CVE-2024-49365 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-49365 exists.
Sources
Also known as GHSA-5vhg-9xg4-cv9m.