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CVE-2026-89098— Nfs-utils: nfs-utils: denial of service via assertion failure in fsidd

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 nfs-utils 中发现了一个漏洞。fsidd 守护进程通过依赖程序断言来验证从其本地域套接字接收的输入中的命令参数，处理方式不当。本地用户可通过发送缺少必需参数的畸形请求来利用该漏洞，从而触发断言失败。这将导致守护进程崩溃，造成文件系统标识符查找服务拒绝服务（DoS），直到服务被重启为止。

CVSS 5.5 · Medium EPSS 0.10% · P1

Possible ATT&CK Techniques 1 AI

T1499.003 · Application Exhaustion Flood

Affected Version Matrix 7

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 10 any affected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 any affected
Red Hat Red Hat Enterprise Linux 8 any affected
Red Hat Red Hat Enterprise Linux 9 any affected
Red Hat Red Hat OpenShift Container Platform 4 any affected
any affected
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I. Basic Information for CVE-2026-89098

Vulnerability Information
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Vulnerability Title
Nfs-utils: nfs-utils: denial of service via assertion failure in fsidd
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in nfs-utils. The fsidd daemon improperly handles input received over its local domain socket by relying on program assertions to verify command arguments. A local user can exploit this vulnerability by sending a malformed request lacking the required arguments to trigger an assertion failure. This causes the daemon to crash, resulting in a Denial of Service (DoS) for filesystem identifier lookup services until restarted.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可达断言
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2026-89098

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III. Intelligence Information for CVE-2026-89098

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Vendor Advisories for CVE-2026-89098 (2)

Same Patch Batch · Red Hat · 2026-10-16 · 15 CVEs total

CVE-2026-104715 7.8 HIGH Cifs-utils: mount.cifs credential-file option injection allows local privilege boundary by
CVE-2026-105958 7.5 HIGH Spice-server: spice: heap oob read/write via unchecked migration data offsets
CVE-2026-105959 7.5 HIGH Spice-server: spice: heap buffer overflow via glz dictionary max_encoders integer truncati
CVE-2026-62439 7.0 HIGH Gimp: gimp: file-pvr plug-in pvr file parsing integer overflow heap-based buffer overflow
CVE-2026-89085 6.6 MEDIUM Parted: parted: heap-based buffer overflow via crafted fat32 filesystem image
CVE-2026-111802 6.6 MEDIUM Nautilus: nautilus: arbitrary file deletion via trash symlink
CVE-2026-85231 6.5 MEDIUM Libtirpc: libtirpc: denial of service via unbounded memory allocation during rpcsec_gss de
CVE-2026-62438 6.1 MEDIUM Gimp: gimp: paa integer overflow out-of-bounds read
CVE-2026-111555 6.0 MEDIUM Luksmeta: missing slot-range validation permits out-of-gap device i/o
CVE-2026-89096 5.9 MEDIUM Nfs-utils: nfs-utils: denial of service via memory leak in rpc.statd
CVE-2026-89088 5.5 MEDIUM Parted: parted: denial of service via heap buffer overflow during fat16 resize
CVE-2026-85977 5.3 MEDIUM Libtirpc: libtirpc: denial of service via unbounded memory allocation during portmapper re
CVE-2026-17591 3.6 LOW Libarchive: libarchive: use-after-free via aliased mac metadata copy
CVE-2026-111581 3.3 LOW Libblockdev: libblockdev: argument injection in ntfs/vfat label-setting helpers via udisks

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-617

V. Comments for CVE-2026-89098

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