What is CVE-2026-48863?

CVE-2026-48863 is a high-severity vulnerability in Opensuse Libsolv, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-07-16.

How severe is CVE-2026-48863?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Opensuse Libsolv

CVE-2026-48863

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 Ed…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Opensuse Libsolv — versions 0.6.4
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Hardened Images
Red Hat Openshift Container Platform 4
Red Hat Satellite 6
Red Hat Update Infrastructure 4 For Cloud Providers

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
secalert@redhat.com
0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Frequently asked questions

What is CVE-2026-48863?: CVE-2026-48863 is a high-severity vulnerability in Opensuse Libsolv, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-07-16.
How severe is CVE-2026-48863?: High severity. CVSS v3 base score is 7.5 out of 10.