Description

A flaw was found in the blst cryptographic library. This out-of-bounds stack write vulnerability, specifically in the blst_sha256_bcopy assembly routine, occurs due to a missing zero-length guard. A remote attacker can exploit this by providing a zero-length salt parameter to key generation functions, such as blst_keygen_v5(), if the application exposes this functionality. Successful exploitation leads to memory corruption and immediate process termination, resulting in a denial-of-service (DoS) condition.

INFO

Published Date :

2026-02-19T06:58:47.090Z

Last Modified :

2026-02-19T21:32:34.940Z

Source :

fedora
AFFECTED PRODUCTS

The following products are affected by CVE-2026-2681 vulnerability.

Vendors Products
Supranational
  • Blst
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-2681.

URL Resource
https://access.redhat.com/security/cve/CVE-2026-2681 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2440580 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-2681 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-2681 cve-icon
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