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HIGH

CVE-2026-90234

CVSS v3

7.5

HIGH

Score EPSS

0.5 %

probabilité d’exploitation au 2026-09-28

CISA KEV

Non

exploitation connue

Exploitation

—

statut SSVC

Description

In the Linux kernel, the following vulnerability has been resolved: NFS: Return a delegation the client fails to record When an NFS server grants a delegation in an OPEN reply, nfs_inode_set_delegation() records it on the client. However, three of its error flows return without sending DELEGRETURN. A delegation can be relinquished only by DELEGRETURN (RFC 8881 Section 20.2.4), so dropping one silently leaves the server believing the client still holds it. If the server happens to recall that

Détails techniques

Publiée le
2026-09-17
Dernière modification
2026-09-18

Questions fréquentes

Qu’est-ce que CVE-2026-90234 ?

In the Linux kernel, the following vulnerability has been resolved: NFS: Return a delegation the client fails to record When an NFS server grants a delegation in an OPEN reply, nfs_inode_set_delegation() records it on the client. However, three of its error flows return without sending DELEGRETURN. A delegation can be relinquished only by DELEGRETURN (RFC 8881 Section 20.2.4), so dropping one silently leaves the server believing the client still holds it. If the server happens to recall that

CVE-2026-90234 est-elle activement exploitée ?

Aucune exploitation active de CVE-2026-90234 n’est confirmée. Son score EPSS était de 0.5 % au 2026-09-28, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2026-90234 ?

CVE-2026-90234 a un score de base CVSS v3 de 7.5 (gravité HIGH).

CVE-2026-90234 touche-t-elle votre environnement ?

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