Lucene search
+L

CVE-2026-89695 nfsd: cap decoded POSIX ACL count to bound sort cost

🗓️ 11 Sep 2026 19:46:14Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 2 Views

Uncapped ACL count in Linux kernel nfsd causes O(n^2) sort DoS during POSIX ACL decoding.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-89695
11 Sep 202619:46
cve
euvd
EUVD
EUVD-2026-76607
11 Sep 202619:46
euvd
nvd
NVD
CVE-2026-89695
11 Sep 202620:19
nvd
ptsecurity
Positive Technologies
PT-2026-90411
11 Sep 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/nfs4xdr.c"
    ],
    "versions": [
      {
        "version": "5fc51dfc2eb160bd7ab3251ab1767cacf9c8bf05",
        "lessThan": "ea14d71d6ecb925673761bcf79f781f7dc9042cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5fc51dfc2eb160bd7ab3251ab1767cacf9c8bf05",
        "lessThan": "4bc1108e876153a2dd6d874052b99182c3603135",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/nfs4xdr.c"
    ],
    "versions": [
      {
        "version": "7.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation