CVE-2026-53363: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-7xf9-r6gc-x4cm
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CVSS 9.8
Published
Advisory Summary

CVE-2026-53363 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53363 at a Glance

CVE Identifier CVE-2026-53363
GHSA Identifier GHSA-7xf9-r6gc-x4cm
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-53363

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-2026-53363, 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: xfrm: iptfs: preserve shared-frag marker in iptfs_consume_frags() iptfs_consume_frags() transfers paged fragments from one socket buffer to another but fails to propagate the SKBFL_SHARED_FRAG flag. This is the same class of bug that was fixed in skb_try_coalesce() for CVE-2026-46300: when fragments backed by read-only page-cache pages are merged, the marker indicating their shared nature must be preserved so that ESP can decide correctly whether in-place encryption is safe. Apply the same two-line fix used in skb_try_coalesce() to iptfs_consume_frags().

References

NVD — CVE-2026-53363 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53363
git.kernel.org/stable/c/c885d111ed... WEB
https://git.kernel.org/stable/c/c885d111ed9f5a0a1f3cc4e87a50db6518abaa6c
git.kernel.org/stable/c/dd66f7f6e3... WEB
https://git.kernel.org/stable/c/dd66f7f6e360ee82cd905517726f8e9091265de5
git.kernel.org/stable/c/e9096a5a17... WEB
https://git.kernel.org/stable/c/e9096a5a170e7ecd6467bc2e08668ec39897cda7

Frequently Asked Questions

What is CVE-2026-53363?
CVE-2026-53363 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-2026-53363?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53363?
CVE-2026-53363 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-53363?
CVE-2026-53363 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-53363?
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-7xf9-r6gc-x4cm",
  "modified" : "2026-07-18T09:32:16Z",
  "published" : "2026-07-10T12:31:44Z",
  "aliases" : [ "CVE-2026-53363" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: iptfs: preserve shared-frag marker in iptfs_consume_frags()\n\niptfs_consume_frags() transfers paged fragments from one socket buffer\nto another but fails to propagate the SKBFL_SHARED_FRAG flag. This is\nthe same class of bug that was fixed in skb_try_coalesce() for\nCVE-2026-46300: when fragments backed by read-only page-cache pages are\nmerged, the marker indicating their shared nature must be preserved so\nthat ESP can decide correctly whether in-place encryption is safe.\n\nApply the same two-line fix used in skb_try_coalesce() to\niptfs_consume_frags().",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53363"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c885d111ed9f5a0a1f3cc4e87a50db6518abaa6c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dd66f7f6e360ee82cd905517726f8e9091265de5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e9096a5a170e7ecd6467bc2e08668ec39897cda7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-10T12:17:22Z"
  }
}