CVE-2026-31696

🗓️ 01 May 2026 13:55:57Reported by LinuxType

cve🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 3 Views

Linux kernel rxrpc non-Xdr preparse validates ticket length against AFSTOKEN_RK_TIX_MAX.

Reporter	Title	Published	Views	Family All 44
ATTACKERKB	CVE-2026-31696	1 May 202613:55	–	attackerkb
CBLMariner	CVE-2026-31696 affecting package kernel for versions less than 6.6.137.1-2	9 May 202603:31	–	cbl_mariner
Chainguard	CVE-2026-31696 vulnerabilities	8 May 202607:18	–	cgr
CNNVD	Linux kernel 安全漏洞	1 May 202600:00	–	cnnvd
Cvelist	CVE-2026-31696 rxrpc: Fix missing validation of ticket length in non-XDR key preparsing	1 May 202613:55	–	cvelist
Debian CVE	CVE-2026-31696	1 May 202613:55	–	debiancve
EUVD	EUVD-2026-26505	1 May 202613:55	–	euvd
Mageia	Updated kernel, kmod-virtualbox & kmod-xtables-addons packages fix security vulnerabilities	4 May 202616:05	–	mageia
Mageia	Updated kernel-linus packages fix security vulnerabilities	7 May 202605:06	–	mageia
Microsoft CVE	rxrpc: Fix missing validation of ticket length in non-XDR key preparsing	2 May 202608:04	–	mscve

NVD

Vulners

CNA

Node

linux linux_kernelRange3.17–6.6.136

linux linux_kernelRange6.7–6.12.84

linux linux_kernelRange6.13–6.18.25

linux linux_kernelRange6.19–7.0.2

linux linux_kernelMatch7.1rc1

linux linux_kernelMatch7.1rc2

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/rxrpc/key.c"
    ],
    "versions": [
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "44714dfda386884919ba366411880b6fb3c3efd3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "41a117dd80371343babc52198d1114e83eb37627",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "9a397aa9b5e53ca63d4d6aefb542832eca389618",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "1fa36cf495b0023e8475d038535c05e4063211e1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "4458757c020592a3094366e0fb20457383b42f92",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "ce383ba615339f8eaec646a166d2c2b015bb5ca0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "a1be1c9ece26cea69654f28b255ff9a7906b897b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a7a3eb4ddbe7c7e639170a64adede7cbd5a9247",
        "lessThan": "ac33733b10b484d666f97688561670afd5861383",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/rxrpc/key.c"
    ],
    "versions": [
      {
        "version": "3.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.136",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.84",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.25",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.2",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/41a117dd80371343babc52198d1114e83eb37627
git	www.git.kernel.org/stable/c/ce383ba615339f8eaec646a166d2c2b015bb5ca0
git	www.git.kernel.org/stable/c/a1be1c9ece26cea69654f28b255ff9a7906b897b
git	www.git.kernel.org/stable/c/ac33733b10b484d666f97688561670afd5861383
git	www.git.kernel.org/stable/c/4458757c020592a3094366e0fb20457383b42f92
git	www.git.kernel.org/stable/c/1fa36cf495b0023e8475d038535c05e4063211e1
git	www.git.kernel.org/stable/c/44714dfda386884919ba366411880b6fb3c3efd3
git	www.git.kernel.org/stable/c/9a397aa9b5e53ca63d4d6aefb542832eca389618

01 Jun 2026 17:16Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.17.8

EPSS0.00015

CWE-787