CVE-2026-63860: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-cqch-vjq7-8xrc
Share
CVSS 8.4
CWE-170
Published
Advisory Summary

CVE-2026-63860 is a HIGH (CVSS 8.4) security vulnerability vulnerability (CWE-170: Improper Null Termination) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-63860 at a Glance

CVE Identifier CVE-2026-63860
GHSA Identifier GHSA-cqch-vjq7-8xrc
Severity HIGH
CVSS v3.1 Base Score 8.4
CWE Classification CWE-170: Improper Null Termination
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.4

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

Attack Vector Local (AV:L)
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-2026-63860

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-2026-63860, 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-170: Improper Null Termination, where the product does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator. 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: RDMA/core: Prefer NLA_NUL_STRING These attributes are evaluated as c-string (passed to strcmp), but NLA_STRING doesn't check for the presence of a \0 terminator. Either this needs to switch to nla_strcmp() and needs to adjust printf fmt specifier to not use plain %s, or this needs to use NLA_NUL_STRING. As the code has been this way for long time, it seems to me that userspace does include the terminating nul, even tough its not enforced so far, and thus NLA_NUL_STRING use is the simpler solution.

References

NVD — CVE-2026-63860 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63860
git.kernel.org/stable/c/137b591893... WEB
https://git.kernel.org/stable/c/137b5918931d4d05aa8ea8d3adf67f7224eef63c
git.kernel.org/stable/c/5877c04339... WEB
https://git.kernel.org/stable/c/5877c043398d5fa0e93919a3d837e5cd7a98a961
git.kernel.org/stable/c/6ed3d14fc4... WEB
https://git.kernel.org/stable/c/6ed3d14fc45d3da6025e7fe4a6a09066856698e2
git.kernel.org/stable/c/87111356d5... WEB
https://git.kernel.org/stable/c/87111356d58d86edb221ba144d261ed83a5b8bbe
git.kernel.org/stable/c/abda65bdd1... WEB
https://git.kernel.org/stable/c/abda65bdd13084c771842adaac1f652d0660dd82
git.kernel.org/stable/c/c26a0052cc... WEB
https://git.kernel.org/stable/c/c26a0052cceed4c4d380ee5808b699f937fb58d8
git.kernel.org/stable/c/f2c7b39dde... WEB
https://git.kernel.org/stable/c/f2c7b39dde2e61df8157066969cc2a408cd3dcd9
git.kernel.org/stable/c/fcd07d3b8e... WEB
https://git.kernel.org/stable/c/fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdf

Frequently Asked Questions

What is CVE-2026-63860?
CVE-2026-63860 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-170: Improper Null Termination.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-63860?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-63860?
CVE-2026-63860 has a CVSS v3.1 base score of 8.4 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-63860?
CVE-2026-63860 is classified under CWE-170: Improper Null Termination (The product does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator.).
How can I check Maven dependencies for CVE-2026-63860?
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-cqch-vjq7-8xrc",
  "modified" : "2026-07-20T15:31:48Z",
  "published" : "2026-07-19T15:30:27Z",
  "aliases" : [ "CVE-2026-63860" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prefer NLA_NUL_STRING\n\nThese attributes are evaluated as c-string (passed to strcmp), but\nNLA_STRING doesn't check for the presence of a \\0 terminator.\n\nEither this needs to switch to nla_strcmp() and needs to adjust printf fmt\nspecifier to not use plain %s, or this needs to use NLA_NUL_STRING.\n\nAs the code has been this way for long time, it seems to me that userspace\ndoes include the terminating nul, even tough its not enforced so far, and\nthus NLA_NUL_STRING use is the simpler solution.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/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-2026-63860"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/137b5918931d4d05aa8ea8d3adf67f7224eef63c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5877c043398d5fa0e93919a3d837e5cd7a98a961"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6ed3d14fc45d3da6025e7fe4a6a09066856698e2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/87111356d58d86edb221ba144d261ed83a5b8bbe"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/abda65bdd13084c771842adaac1f652d0660dd82"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c26a0052cceed4c4d380ee5808b699f937fb58d8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f2c7b39dde2e61df8157066969cc2a408cd3dcd9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdf"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-170" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T15:16:52Z"
  }
}