CVE-2026-74615: Software Security Vulnerability Vulnerability

HIGH

Advisory Identifier: GHSA-m2v3-p29r-xwmj

CVSS 8.8

Published 2026-08-22

Advisory Summary

CVE-2026-74615 is a HIGH (CVSS 8.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74615 at a Glance

CVE Identifier CVE-2026-74615

GHSA Identifier GHSA-m2v3-p29r-xwmj

Severity HIGH

CVSS v3.1 Base Score 8.8

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-08-22

Last Updated 2026-08-25

Security Impact

CVSS: 8.8

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:C/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 Changed (S:C)

Confidentiality High (C:H)

Integrity High (I:H)

Availability High (A:H)

How to Fix CVE-2026-74615

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-2026-74615, 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: vxlan: do not arm the ageing timer on a device that is down vxlan_changelink() arms vxlan->age_timer whenever the requested ageing interval differs from the configured one: if (conf.age_interval != vxlan->cfg.age_interval) mod_timer(&vxlan->age_timer, jiffies); There is no netif_running() test, so the timer is armed even on a device that was never brought up. The only synchronous cancel in the driver is the timer_delete_sync() in vxlan_stop(), which is .ndo_stop. netif_close_many() drops devices without IFF_UP before __dev_close_many() runs, so that cancel is skipped for such a device. vxlan_setup() sets dev->needs_free_netdev = true and age_timer is a member of struct vxlan_dev, so free_netdev() releases the allocation the timer lives in while it is still queued on a timer_base. expire_timers() unlinks the entry before it loads timer->function, so the timer core writes through the freed object's list pointers: BUG: KASAN: slab-use-after-free in __run_timers+0x208/0x654 Write of size 8 at addr ffff00001adace68 by task true/192 __asan_store8+0x84/0xac __run_timers+0x208/0x654 run_timer_softirq+0x154/0x18c Allocated by task 189: alloc_netdev_mqs+0x64/0x720 rtnl_create_link+0x4ac/0x520 rtnl_newlink+0x758/0xd00 Freed by task 191: netdev_release+0x40/0x58 netdev_run_todo+0x4a4/0x8c0 rtnl_dellink+0x200/0x4e8 The rtnl operations involved are netns-scoped, so an unprivileged user can perform them in a new user and network namespace. Arming the timer on a down device never had an effect: vxlan_cleanup() returns early on !netif_running(), and vxlan_open() arms the timer for any non-zero interval once the device is brought up. Add the missing test. Discovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>

References

NVD — CVE-2026-74615 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-74615

git.kernel.org/stable/c/26c179d474... WEB

https://git.kernel.org/stable/c/26c179d47403d2f919ee914cc02c31d896b59fee

git.kernel.org/stable/c/46bb297ad7... WEB

https://git.kernel.org/stable/c/46bb297ad77680e009244f067f27d51cf5b8c7cf

git.kernel.org/stable/c/619dd29045... WEB

https://git.kernel.org/stable/c/619dd29045e439d0b0f8c6d4fec1af447a050680

git.kernel.org/stable/c/6b095e99b9... WEB

https://git.kernel.org/stable/c/6b095e99b9e67ea31f0c4b00260e010898253519

git.kernel.org/stable/c/6b4119af54... WEB

https://git.kernel.org/stable/c/6b4119af544996a545cf84b16f1dbce829ba0de8

git.kernel.org/stable/c/9dc561f052... WEB

https://git.kernel.org/stable/c/9dc561f0522c35bdd66e0646a748814a138ec4ca

git.kernel.org/stable/c/b37971686e... WEB

https://git.kernel.org/stable/c/b37971686ec59fb027fa4910ba16805e68fddb97

git.kernel.org/stable/c/be44d79d14... WEB

https://git.kernel.org/stable/c/be44d79d14d7f9ae7c8ffb7272142005341b5123

Frequently Asked Questions

What is CVE-2026-74615?

CVE-2026-74615 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-2026-74615?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What is the CVSS score of CVE-2026-74615?

CVE-2026-74615 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

What CWE is associated with CVE-2026-74615?

CVE-2026-74615 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-74615?

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-m2v3-p29r-xwmj",
  "modified" : "2026-08-25T06:31:23Z",
  "published" : "2026-08-22T18:30:26Z",
  "aliases" : [ "CVE-2026-74615" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: do not arm the ageing timer on a device that is down\n\nvxlan_changelink() arms vxlan->age_timer whenever the requested ageing\ninterval differs from the configured one:\n\n\tif (conf.age_interval != vxlan->cfg.age_interval)\n\t\tmod_timer(&vxlan->age_timer, jiffies);\n\nThere is no netif_running() test, so the timer is armed even on a device\nthat was never brought up.  The only synchronous cancel in the driver is\nthe timer_delete_sync() in vxlan_stop(), which is .ndo_stop.\nnetif_close_many() drops devices without IFF_UP before\n__dev_close_many() runs, so that cancel is skipped for such a device.\n\nvxlan_setup() sets dev->needs_free_netdev = true and age_timer is a\nmember of struct vxlan_dev, so free_netdev() releases the allocation the\ntimer lives in while it is still queued on a timer_base.\nexpire_timers() unlinks the entry before it loads timer->function, so\nthe timer core writes through the freed object's list pointers:\n\n  BUG: KASAN: slab-use-after-free in __run_timers+0x208/0x654\n  Write of size 8 at addr ffff00001adace68 by task true/192\n   __asan_store8+0x84/0xac\n   __run_timers+0x208/0x654\n   run_timer_softirq+0x154/0x18c\n  Allocated by task 189:\n   alloc_netdev_mqs+0x64/0x720\n   rtnl_create_link+0x4ac/0x520\n   rtnl_newlink+0x758/0xd00\n  Freed by task 191:\n   netdev_release+0x40/0x58\n   netdev_run_todo+0x4a4/0x8c0\n   rtnl_dellink+0x200/0x4e8\n\nThe rtnl operations involved are netns-scoped, so an unprivileged user\ncan perform them in a new user and network namespace.\n\nArming the timer on a down device never had an effect: vxlan_cleanup()\nreturns early on !netif_running(), and vxlan_open() arms the timer for\nany non-zero interval once the device is brought up.  Add the missing\ntest.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74615"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/26c179d47403d2f919ee914cc02c31d896b59fee"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/46bb297ad77680e009244f067f27d51cf5b8c7cf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/619dd29045e439d0b0f8c6d4fec1af447a050680"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6b095e99b9e67ea31f0c4b00260e010898253519"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6b4119af544996a545cf84b16f1dbce829ba0de8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9dc561f0522c35bdd66e0646a748814a138ec4ca"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b37971686ec59fb027fa4910ba16805e68fddb97"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/be44d79d14d7f9ae7c8ffb7272142005341b5123"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-22T16:16:34Z"
  }
}

CVSS V3

8.8 HIGH