CVE-2026-63810: Software Security Vulnerability Vulnerability

UNKNOWN

Advisory Identifier: GHSA-xxr8-hfww-qgf6

Published 2026-07-19

Advisory Summary

CVE-2026-63810 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-63810 at a Glance

CVE Identifier CVE-2026-63810

GHSA Identifier GHSA-xxr8-hfww-qgf6

Severity N/A

CVSS v3.1 Base Score N/A

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-07-19

Last Updated 2026-10-15

How to Fix CVE-2026-63810

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-63810, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not interfere. Unregister it so that userspace cannot even attempt to mount it. This fixes a bug [1] that occurs when attempting to access files, because the system call move_mount() uses pointers declared in the inode_operations structure, which for the bdev pseudo-filesystem are always equal to 0. `inode->i_op = &empty_iops;` [1] BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 23380067 P4D 23380067 PUD 23381067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN NOPTI CPU: 2 PID: 17125 Comm: syz-executor.0 Not tainted 6.1.155-syzkaller-00350-g84221fde2681 #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:0x0 Call Trace: <TASK> lookup_open.isra.0+0x700/0x1180 fs/namei.c:3460 open_last_lookups fs/namei.c:3550 [inline] path_openat+0x953/0x2700 fs/namei.c:3780 do_filp_open+0x1c5/0x410 fs/namei.c:3810 do_sys_openat2+0x171/0x4d0 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x13c/0x1f0 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

References

NVD — CVE-2026-63810 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-63810

cert-portal.siemens.com/productcert/html/ss... WEB

https://cert-portal.siemens.com/productcert/html/ssa-019113.html

cert-portal.siemens.com/productcert/html/ss... WEB

https://cert-portal.siemens.com/productcert/html/ssa-457936.html

git.kernel.org/stable/c/197971e6ff... WEB

https://git.kernel.org/stable/c/197971e6ffc0a6356b2ba2b22beb42bc0f7e412d

git.kernel.org/stable/c/1a02a5028b... WEB

https://git.kernel.org/stable/c/1a02a5028bd6dead1f8503854ef3168d651cd417

git.kernel.org/stable/c/3804e6de30... WEB

https://git.kernel.org/stable/c/3804e6de30ae7b053d53341d9d6944356cf23b40

git.kernel.org/stable/c/3d3fcf2399... WEB

https://git.kernel.org/stable/c/3d3fcf23993bb756de2f912ab631cfdcc4746554

git.kernel.org/stable/c/717f721eb6... WEB

https://git.kernel.org/stable/c/717f721eb67d2dacd3ed5f7495aef2f442e84ce4

git.kernel.org/stable/c/99cde0a7b1... WEB

https://git.kernel.org/stable/c/99cde0a7b1e98fd3970aabef1300918e91698dd5

git.kernel.org/stable/c/f73aa66dff... WEB

https://git.kernel.org/stable/c/f73aa66dffcb8e61e78f01b56163ec16a15d06d2

Frequently Asked Questions

What is CVE-2026-63810?

CVE-2026-63810 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2026-63810?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What CWE is associated with CVE-2026-63810?

CVE-2026-63810 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-63810?

Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xxr8-hfww-qgf6",
  "modified" : "2026-10-15T03:36:21Z",
  "published" : "2026-07-19T12:30:23Z",
  "aliases" : [ "CVE-2026-63810" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Avoid mounting the bdev pseudo-filesystem in userspace\n\nThe bdev pseudo-filesystem is an internal kernel filesystem with which\nuserspace should not interfere. Unregister it so that userspace cannot\neven attempt to mount it.\n\nThis fixes a bug [1] that occurs when attempting to access files,\nbecause the system call move_mount() uses pointers declared in the\ninode_operations structure, which for the bdev pseudo-filesystem\nare always equal to 0. `inode->i_op = &empty_iops;`\n\n[1]\n\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n #PF: supervisor instruction fetch in kernel mode\n #PF: error_code(0x0010) - not-present page\n PGD 23380067 P4D 23380067 PUD 23381067 PMD 0\n Oops: 0010 [#1] PREEMPT SMP KASAN NOPTI\n CPU: 2 PID: 17125 Comm: syz-executor.0 Not tainted 6.1.155-syzkaller-00350-g84221fde2681 #0\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\n RIP: 0010:0x0\n\n Call Trace:\n <TASK>\n lookup_open.isra.0+0x700/0x1180 fs/namei.c:3460\n open_last_lookups fs/namei.c:3550 [inline]\n path_openat+0x953/0x2700 fs/namei.c:3780\n do_filp_open+0x1c5/0x410 fs/namei.c:3810\n do_sys_openat2+0x171/0x4d0 fs/open.c:1318\n do_sys_open fs/open.c:1334 [inline]\n __do_sys_openat fs/open.c:1350 [inline]\n __se_sys_openat fs/open.c:1345 [inline]\n __x64_sys_openat+0x13c/0x1f0 fs/open.c:1345\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-63810"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
  }, {
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    "url" : "https://git.kernel.org/stable/c/1a02a5028bd6dead1f8503854ef3168d651cd417"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3804e6de30ae7b053d53341d9d6944356cf23b40"
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/717f721eb67d2dacd3ed5f7495aef2f442e84ce4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/99cde0a7b1e98fd3970aabef1300918e91698dd5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f73aa66dffcb8e61e78f01b56163ec16a15d06d2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T12:16:53Z"
  }
}

Advisory Metadata

Source ID: GHSA-xxr8-hfww-qgf6
Schema Version: 1.4.0
Published: 2026-07-19 12:30
Last Modified: 2026-10-15 03:36
Database Record File: advisories/unreviewed/2026/07/GHSA-xxr8-hfww-qgf6/GHSA-xxr8-hfww-qgf6.json