CVE catalog
CVE-2026-89098
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 th
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.15% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | nfs-utils | sid | 1:3.1.1-1 | fixed |
| Debian | nfs-utils | forky | 1:3.1.1-1 | fixed |
| Debian | nfs-utils | trixie | 1:2.8.3-1 | vulnerable |
| Debian | nfs-utils | bookworm | 1:2.6.2-4+deb12u1 | vulnerable |
| Ubuntu | nfs-utils | 14.04 | 1:1.2.8-2ubuntu2 | vulnerable |
| Ubuntu | nfs-utils | 14.04 | 1:1.2.8-4ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 14.04 | 1:1.2.8-5ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 14.04 | 1:1.2.8-6ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 14.04 | 1:1.2.8-6ubuntu1.1 | vulnerable |
| Ubuntu | nfs-utils | 14.04 | 1:1.2.8-6ubuntu1.2 | vulnerable |
| Ubuntu | nfs-utils | 16.04 | 1:1.2.8-9ubuntu10 | vulnerable |
| Ubuntu | nfs-utils | 16.04 | 1:1.2.8-9ubuntu11 | vulnerable |
| Ubuntu | nfs-utils | 16.04 | 1:1.2.8-9ubuntu12 | vulnerable |
| Ubuntu | nfs-utils | 16.04 | 1:1.2.8-9ubuntu12.1 | vulnerable |
| Ubuntu | nfs-utils | 16.04 | 1:1.2.8-9ubuntu12.2 | vulnerable |
| Ubuntu | nfs-utils | 16.04 | 1:1.2.8-9ubuntu12.3 | vulnerable |
| Ubuntu | nfs-utils | 18.04 | 1:1.3.4-2.1ubuntu2 | vulnerable |
| Ubuntu | nfs-utils | 18.04 | 1:1.3.4-2.1ubuntu4 | vulnerable |
| Ubuntu | nfs-utils | 18.04 | 1:1.3.4-2.1ubuntu5 | vulnerable |
| Ubuntu | nfs-utils | 18.04 | 1:1.3.4-2.1ubuntu5.1 | vulnerable |
| Ubuntu | nfs-utils | 18.04 | 1:1.3.4-2.1ubuntu5.2 | vulnerable |
| Ubuntu | nfs-utils | 18.04 | 1:1.3.4-2.1ubuntu5.3 | vulnerable |
| Ubuntu | nfs-utils | 18.04 | 1:1.3.4-2.1ubuntu5.5 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu2 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu3 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu3.1 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu3.3 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu3.4 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu3.5 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu3.6 | vulnerable |
| Ubuntu | nfs-utils | 20.04 | 1:1.3.4-2.5ubuntu3.7 | vulnerable |
| Ubuntu | nfs-utils | 22.04 | 1:1.3.4-6ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 22.04 | 1:2.6.1-1~exp1ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 22.04 | 1:2.6.1-1ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 22.04 | 1:2.6.1-1ubuntu1.1 | vulnerable |
| Ubuntu | nfs-utils | 22.04 | 1:2.6.1-1ubuntu1.2 | vulnerable |
| Ubuntu | nfs-utils | 24.04 | 1:2.6.3-3ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 24.04 | 1:2.6.4-3ubuntu3 | vulnerable |
| Ubuntu | nfs-utils | 24.04 | 1:2.6.4-3ubuntu4 | vulnerable |
| Ubuntu | nfs-utils | 24.04 | 1:2.6.4-3ubuntu5 | vulnerable |
| Ubuntu | nfs-utils | 24.04 | 1:2.6.4-3ubuntu5.1 | vulnerable |
| Ubuntu | nfs-utils | 26.10 | 1:2.8.5-1ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 26.10 | 1:2.9.1-1ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 26.04 | 1:2.8.3-1ubuntu3 | vulnerable |
| Ubuntu | nfs-utils | 26.04 | 1:2.8.4-1ubuntu1 | vulnerable |
| Ubuntu | nfs-utils | 26.04 | 1:2.8.5-1ubuntu1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | nfs-utils | source | sid | 1:3.1.1-1 | not yet assigned | Not reported | Not reported |
| Debian | nfs-utils | source | forky | 1:3.1.1-1 | not yet assigned | Not reported | Not reported |
| Debian | nfs-utils | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | nfs-utils | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[trixie] nfs-utils: Minor issue; potential update will be handled within kernel-team
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnfsidmap1]Affected
Source package: [nfs-utils]
Details (2)
1:2.6.2-4+deb12u1· amd64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
1:2.6.2-4+deb12u1· arm64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
- [libnfsidmap-dev]Affected
Source package: [nfs-utils]
Details (2)
1:2.6.2-4+deb12u1· amd64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
1:2.6.2-4+deb12u1· arm64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
- [nfs-common]Affected
Source package: [nfs-utils]
Details (2)
1:2.6.2-4+deb12u1· amd64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
1:2.6.2-4+deb12u1· arm64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
- [nfs-kernel-server]Affected
Source package: [nfs-utils]
Details (2)
1:2.6.2-4+deb12u1· amd64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
1:2.6.2-4+deb12u1· arm64 · bookwormAffected
nvd · nfs-utils · debian · bookworm; nvd · nfs-utils · debian · 12
[Debian 13 (Trixie)]
- [libnfsidmap1]Affected
Source package: [nfs-utils]
Details (2)
1:2.8.3-1· amd64 · trixieAffected
nvd · nfs-utils · debian · 13
1:2.8.3-1· arm64 · trixieAffected
nvd · nfs-utils · debian · 13
- [libnfsidmap-dev]Affected
Source package: [nfs-utils]
Details (2)
1:2.8.3-1· amd64 · trixieAffected
nvd · nfs-utils · debian · 13
1:2.8.3-1· arm64 · trixieAffected
nvd · nfs-utils · debian · 13
- [nfs-common]Affected
Source package: [nfs-utils]
Details (2)
1:2.8.3-1· amd64 · trixieAffected
nvd · nfs-utils · debian · 13
1:2.8.3-1· arm64 · trixieAffected
nvd · nfs-utils · debian · 13
- [nfs-kernel-server]Affected
Source package: [nfs-utils]
Details (2)
1:2.8.3-1· amd64 · trixieAffected
nvd · nfs-utils · debian · 13
1:2.8.3-1· arm64 · trixieAffected
nvd · nfs-utils · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-89098]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-89098]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-89098]
- [https://security-tracker.debian.org/tracker/CVE-2026-89098]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89098.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4020.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]