CVE-2026-74456: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-crgv-x77w-rh88
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CVSS 7.8
Published
Advisory Summary

CVE-2026-74456 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74456 at a Glance

CVE Identifier CVE-2026-74456
GHSA Identifier GHSA-crgv-x77w-rh88
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2026-74456

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-2026-74456, 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: can: peak_usb: peak_usb_start(): fix double free of transfer buffer on URB submit error In peak_usb_start(), each RX URB transfer buffer is allocated with kmalloc() and the URB is flagged URB_FREE_BUFFER so that the final usb_free_urb() also frees the transfer buffer. If usb_submit_urb() fails, the error path frees the buffer explicitly with kfree(buf) and then calls usb_free_urb(urb). Because URB_FREE_BUFFER is set, usb_free_urb() -> urb_destroy() frees the same buffer a second time, a double free of the transfer buffer. BUG: KASAN: double-free in usb_free_urb.part.0+0x91/0xb0 Free of addr ffff8881069ccb80 by task trigger.sh/285 Call Trace: kfree+0x113/0x3c0 usb_free_urb.part.0+0x91/0xb0 Drop the redundant kfree(buf); usb_free_urb() already releases the transfer buffer. This mirrors commit 03819abbeb11 ("net: usb: lan78xx: Fix double free issue with interrupt buffer allocation").

References

NVD — CVE-2026-74456 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74456
git.kernel.org/stable/c/4bb3325075... WEB
https://git.kernel.org/stable/c/4bb3325075138dd5346b71589a959878b564dc0b
git.kernel.org/stable/c/525640b93d... WEB
https://git.kernel.org/stable/c/525640b93d3e5f82f4ebea4730f4e0cf799522ba
git.kernel.org/stable/c/5f2fa5840c... WEB
https://git.kernel.org/stable/c/5f2fa5840c34d3a558c57855781be75e03bef752
git.kernel.org/stable/c/914c3b8fa1... WEB
https://git.kernel.org/stable/c/914c3b8fa175acf8476ad31cf04e308638e3578e
git.kernel.org/stable/c/92d0de80ca... WEB
https://git.kernel.org/stable/c/92d0de80ca2223b9c7da78020155b6cb27824cc0
git.kernel.org/stable/c/9b3d5a6d95... WEB
https://git.kernel.org/stable/c/9b3d5a6d952c38bbcf07f903cbeadefdb56b9bc9
git.kernel.org/stable/c/b9088d581f... WEB
https://git.kernel.org/stable/c/b9088d581fff971a7eb1628f8dcc30df6cfef4dc
git.kernel.org/stable/c/dfb17bf04a... WEB
https://git.kernel.org/stable/c/dfb17bf04a764462000f11258a7c06aa92d1f261

Frequently Asked Questions

What is CVE-2026-74456?
CVE-2026-74456 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-2026-74456?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74456?
CVE-2026-74456 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-74456?
CVE-2026-74456 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74456?
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-crgv-x77w-rh88",
  "modified" : "2026-08-19T18:32:27Z",
  "published" : "2026-08-15T15:30:33Z",
  "aliases" : [ "CVE-2026-74456" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: peak_usb_start(): fix double free of transfer buffer on URB submit error\n\nIn peak_usb_start(), each RX URB transfer buffer is allocated with kmalloc()\nand the URB is flagged URB_FREE_BUFFER so that the final usb_free_urb() also\nfrees the transfer buffer.\n\nIf usb_submit_urb() fails, the error path frees the buffer explicitly with\nkfree(buf) and then calls usb_free_urb(urb). Because URB_FREE_BUFFER is set,\nusb_free_urb() -> urb_destroy() frees the same buffer a second time, a double\nfree of the transfer buffer.\n\n  BUG: KASAN: double-free in usb_free_urb.part.0+0x91/0xb0\n  Free of addr ffff8881069ccb80 by task trigger.sh/285\n\n  Call Trace:\n   kfree+0x113/0x3c0\n   usb_free_urb.part.0+0x91/0xb0\n\nDrop the redundant kfree(buf); usb_free_urb() already releases the transfer\nbuffer. This mirrors commit 03819abbeb11 (\"net: usb: lan78xx: Fix double free\nissue with interrupt buffer allocation\").",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74456"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4bb3325075138dd5346b71589a959878b564dc0b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/525640b93d3e5f82f4ebea4730f4e0cf799522ba"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5f2fa5840c34d3a558c57855781be75e03bef752"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/914c3b8fa175acf8476ad31cf04e308638e3578e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/92d0de80ca2223b9c7da78020155b6cb27824cc0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9b3d5a6d952c38bbcf07f903cbeadefdb56b9bc9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b9088d581fff971a7eb1628f8dcc30df6cfef4dc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dfb17bf04a764462000f11258a7c06aa92d1f261"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T13:17:50Z"
  }
}