VULNERABILITY INTELLIGENCE
CVE-2026-48863
CVSS score7.5 HIGH
EPSS probability0.82%
CISA KEVNot currently listed
Published2026-07-16
Last modified2026-08-31
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
A flaw was found in libsolv. A stack-based buffer overflow vulnerability exists in the PGP verification component due to incorrect length handling when copying EdDSA 's' MPI into a stack buffer. A remote attacker could craft a malicious Ed25519 PGP signature with mismatched MPI lengths. Processing this crafted signature could lead to a denial of service in automated package or repository processing workflows.
Weakness classification
- secalert@redhat.com: CWE-121
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-121