CVE-2026-53246: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-48jv-x8c6-486c
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CVSS 9.8
CWE-125 CWE-787
Published
Advisory Summary

CVE-2026-53246 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53246 at a Glance

CVE Identifier CVE-2026-53246
GHSA Identifier GHSA-48jv-x8c6-486c
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-125: Out-of-bounds Read
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-2026-53246

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-2026-53246, 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 CWE-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing When a listening SCTP server processes a COOKIE_ECHO chunk, the cached peer INIT chunk embedded after the cookie is parsed and its parameters are later walked by sctp_process_init() using sctp_walk_params(). However, the chunk header length of this cached INIT chunk was not validated against the remaining buffer in the COOKIE_ECHO payload. If the length field is inflated, the parameter walk can run beyond the actual received data, leading to out-of-bounds reads and potential memory corruption during later parameter handling (e.g. STATE_COOKIE processing and kmemdup() copies). Add a bounds check in sctp_unpack_cookie() to ensure the cached INIT chunk length does not exceed the available data in the COOKIE_ECHO buffer before it is used.

References

NVD — CVE-2026-53246 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53246
git.kernel.org/stable/c/0861615c28... WEB
https://git.kernel.org/stable/c/0861615c28de668669d748ef4eb913ea9262d13b
git.kernel.org/stable/c/cc272185c9... WEB
https://git.kernel.org/stable/c/cc272185c9a9a4b7febc2de52eeaa3d00f19091e
git.kernel.org/stable/c/edccbf3d63... WEB
https://git.kernel.org/stable/c/edccbf3d63b0a3362bc916ea72edacc1e1ca456a

Frequently Asked Questions

What is CVE-2026-53246?
CVE-2026-53246 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-53246?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53246?
CVE-2026-53246 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-2026-53246?
CVE-2026-53246 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-53246?
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-48jv-x8c6-486c",
  "modified" : "2026-06-28T09:31:46Z",
  "published" : "2026-06-25T09:31:22Z",
  "aliases" : [ "CVE-2026-53246" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: validate cached peer INIT chunk length in COOKIE_ECHO processing\n\nWhen a listening SCTP server processes a COOKIE_ECHO chunk, the cached\npeer INIT chunk embedded after the cookie is parsed and its parameters\nare later walked by sctp_process_init() using sctp_walk_params().\n\nHowever, the chunk header length of this cached INIT chunk was not\nvalidated against the remaining buffer in the COOKIE_ECHO payload. If\nthe length field is inflated, the parameter walk can run beyond the\nactual received data, leading to out-of-bounds reads and potential\nmemory corruption during later parameter handling (e.g. STATE_COOKIE\nprocessing and kmemdup() copies).\n\nAdd a bounds check in sctp_unpack_cookie() to ensure the cached INIT\nchunk length does not exceed the available data in the COOKIE_ECHO\nbuffer before it is used.",
  "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-2026-53246"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0861615c28de668669d748ef4eb913ea9262d13b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cc272185c9a9a4b7febc2de52eeaa3d00f19091e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/edccbf3d63b0a3362bc916ea72edacc1e1ca456a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125", "CWE-787" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-25T09:16:42Z"
  }
}