CVE-2026-46027: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-6hp6-98mx-37xj
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CVSS 7.5
CWE-617
Published
Advisory Summary

CVE-2026-46027 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-617: Reachable Assertion) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-46027 at a Glance

CVE Identifier CVE-2026-46027
GHSA Identifier GHSA-6hp6-98mx-37xj
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-617: Reachable Assertion
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-46027

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-2026-46027, 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-617: Reachable Assertion, where the product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. 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: net/smc: avoid early lgr access in smc_clc_wait_msg A CLC decline can be received while the handshake is still in an early stage, before the connection has been associated with a link group. The decline handling in smc_clc_wait_msg() updates link-group level sync state for first-contact declines, but that state only exists after link group setup has completed. Guard the link-group update accordingly and keep the per-socket peer diagnosis handling unchanged. This preserves the existing sync_err handling for established link-group contexts and avoids touching link-group state before it is available.

References

NVD — CVE-2026-46027 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46027
git.kernel.org/stable/c/22546729b9... WEB
https://git.kernel.org/stable/c/22546729b96fc873b23065dc49e3d73c45cfb874
git.kernel.org/stable/c/257cdf0c5c... WEB
https://git.kernel.org/stable/c/257cdf0c5ced9c0fba8aba501d94b0a5fcef2086
git.kernel.org/stable/c/5a8db80f72... WEB
https://git.kernel.org/stable/c/5a8db80f721deee8e916c2cfdee78decda02ce4f
git.kernel.org/stable/c/5eedbfd82c... WEB
https://git.kernel.org/stable/c/5eedbfd82c2884e0010fdfb3c9446a6ebcadb691
git.kernel.org/stable/c/6180a296ca... WEB
https://git.kernel.org/stable/c/6180a296ca65b08a81914805cbc0f78da5f10a1f
git.kernel.org/stable/c/83bcf9228b... WEB
https://git.kernel.org/stable/c/83bcf9228b0501694fb2589ed1d142855a2887f2
git.kernel.org/stable/c/ea0b5d0fe9... WEB
https://git.kernel.org/stable/c/ea0b5d0fe96356dce38f98375a57c52a04e13712
git.kernel.org/stable/c/f0858e1d56... WEB
https://git.kernel.org/stable/c/f0858e1d5624bb120b198f2a8528f97a9b0ae069

Frequently Asked Questions

What is CVE-2026-46027?
CVE-2026-46027 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-617: Reachable Assertion.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46027?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46027?
CVE-2026-46027 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-46027?
CVE-2026-46027 is classified under CWE-617: Reachable Assertion (The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.).
How can I check Maven dependencies for CVE-2026-46027?
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 
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  "id" : "GHSA-6hp6-98mx-37xj",
  "modified" : "2026-06-01T18:31:34Z",
  "published" : "2026-05-27T15:33:21Z",
  "aliases" : [ "CVE-2026-46027" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: avoid early lgr access in smc_clc_wait_msg\n\nA CLC decline can be received while the handshake is still in an early\nstage, before the connection has been associated with a link group.\n\nThe decline handling in smc_clc_wait_msg() updates link-group level sync\nstate for first-contact declines, but that state only exists after link\ngroup setup has completed. Guard the link-group update accordingly and\nkeep the per-socket peer diagnosis handling unchanged.\n\nThis preserves the existing sync_err handling for established link-group\ncontexts and avoids touching link-group state before it is available.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
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    "url" : "https://git.kernel.org/stable/c/22546729b96fc873b23065dc49e3d73c45cfb874"
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    "url" : "https://git.kernel.org/stable/c/257cdf0c5ced9c0fba8aba501d94b0a5fcef2086"
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    "url" : "https://git.kernel.org/stable/c/5a8db80f721deee8e916c2cfdee78decda02ce4f"
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    "type" : "WEB",
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    "url" : "https://git.kernel.org/stable/c/f0858e1d5624bb120b198f2a8528f97a9b0ae069"
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  "database_specific" : {
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    "severity" : "HIGH",
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    "nvd_published_at" : "2026-05-27T14:17:21Z"
  }
}