CVE-2026-48863

7.5 Élevée

Publiée le 16/07/2026 à 03:16 · Modifiée le 31/08/2026 à 17:17 · En attente d'analyse NVD · Source : secalert@redhat.com

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.

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Produits concernés

OpenSUSE libsolv
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

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.5 Élevée	secalert@redhat.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
3.1	7.5 Élevée	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-121

Références

https://access.redhat.com/security/cve/CVE-2026-48863
https://bugzilla.redhat.com/show_bug.cgi?id=2460975
https://github.com/openSUSE/libsolv/commit/44f8c085045b1f771641091bbb2b810d12cff9e8#diff-309f245ec9b669ec78b8159c39e6f50130b4d4a0448f742685f7833d04bc4caaR592
https://access.redhat.com/security/cve/CVE-2026-48863
https://bugzilla.redhat.com/show_bug.cgi?id=2460975
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48863.json

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories