CVE-2026-48863: falha de alta gravidade em OpenSUSE libsolv
Libsolv: stack-based buffer overflow in libsolv eddsa pgp signature verification allows denial of service
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 0.8%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
OpenSUSE · libsolvRed Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Hardened ImagesRed Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat Satellite 6Red Hat · Red Hat Update Infrastructure 4 for Cloud ProvidersCVEs relacionadas — OpenSUSE libsolv
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Referências
https://access.redhat.com/security/cve/CVE-2026-48863https://bugzilla.redhat.com/show_bug.cgi?id=2460975https://github.com/openSUSE/libsolv/commit/44f8c085045b1f771641091bbb2b810d12cff9e8#diff-309f245ec9b669ec78b8159c39e6f50130b4d4a0448f742685f7833d04bc4caaR592https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48863.json