CVE-2026-90136: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-547r-p462-qv3c
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Advisory Summary

CVE-2026-90136 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-90136 at a Glance

CVE Identifier CVE-2026-90136
GHSA Identifier GHSA-547r-p462-qv3c
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-90136

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-2026-90136, 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: platform/x86/amd/hsmp: Reject negative power cap writes in hwmon hsmp_hwmon_write() takes the user-supplied hwmon value as a signed long and assigns "val / MICROWATT_PER_MILLIWATT" to msg.args[0], which is a __u32. MICROWATT_PER_MILLIWATT is an unsigned long, so a negative write to power1_cap (e.g. "echo -1 > power1_cap") is first converted to a huge unsigned value by the division and then stored into the u32 argument. As a result a nonsensical, multi-gigawatt socket power limit is sent to the SMU via HSMP_SET_SOCKET_POWER_LIMIT instead of the write being rejected. Reject negative values with -EINVAL before the conversion. Tested with HSMP enabled: CAP=$(dirname $(grep -l amd_hsmp_hwmon \ /sys/class/hwmon/hwmon*/name | head -1))/power1_cap # negative write echo -1000000 > $CAP ; echo "ret=$?" # valid positive write must still work echo 400000000 > $CAP ; echo "ret=$?" Before: # echo -1000000 > $CAP ; echo "ret=$?" ret=0 <- accepted; bogus limit sent to SMU # echo 400000000 > $CAP ; echo "ret=$?" ret=0 After: # echo -1000000 > $CAP ; echo "ret=$?" bash: echo: write error: Invalid argument ret=1 <- rejected with -EINVAL # echo 400000000 > $CAP ; echo "ret=$?" ret=0 <- valid write still works

References

NVD — CVE-2026-90136 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90136
git.kernel.org/stable/c/1b0a3d9153... WEB
https://git.kernel.org/stable/c/1b0a3d915320f1600e5ff43f8bc21b73118480b8
git.kernel.org/stable/c/2c09cadec1... WEB
https://git.kernel.org/stable/c/2c09cadec116eba3fdbcb5d8d8641f6777d4a11f
git.kernel.org/stable/c/3921bb8635... WEB
https://git.kernel.org/stable/c/3921bb8635ff2836622df1cdf3194d4f3c1835a4

Frequently Asked Questions

What is CVE-2026-90136?
CVE-2026-90136 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-2026-90136?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90136?
CVE-2026-90136 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90136?
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-547r-p462-qv3c",
  "modified" : "2026-09-17T18:31:52Z",
  "published" : "2026-09-17T18:31:52Z",
  "aliases" : [ "CVE-2026-90136" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86/amd/hsmp: Reject negative power cap writes in hwmon\n\nhsmp_hwmon_write() takes the user-supplied hwmon value as a signed long\nand assigns \"val / MICROWATT_PER_MILLIWATT\" to msg.args[0], which is a\n__u32.  MICROWATT_PER_MILLIWATT is an unsigned long, so a negative write\nto power1_cap (e.g. \"echo -1 > power1_cap\") is first converted to a huge\nunsigned value by the division and then stored into the u32 argument.\n\nAs a result a nonsensical, multi-gigawatt socket power limit is sent to\nthe SMU via HSMP_SET_SOCKET_POWER_LIMIT instead of the write being\nrejected.\n\nReject negative values with -EINVAL before the conversion.\n\nTested with HSMP enabled:\n\n  CAP=$(dirname $(grep -l amd_hsmp_hwmon \\\n        /sys/class/hwmon/hwmon*/name | head -1))/power1_cap\n\n  # negative write\n  echo -1000000 > $CAP ; echo \"ret=$?\"\n  # valid positive write must still work\n  echo 400000000 > $CAP ; echo \"ret=$?\"\n\nBefore:\n  # echo -1000000 > $CAP ; echo \"ret=$?\"\n  ret=0                             <- accepted; bogus limit sent to SMU\n  # echo 400000000 > $CAP ; echo \"ret=$?\"\n  ret=0\n\nAfter:\n  # echo -1000000 > $CAP ; echo \"ret=$?\"\n  bash: echo: write error: Invalid argument\n  ret=1                             <- rejected with -EINVAL\n  # echo 400000000 > $CAP ; echo \"ret=$?\"\n  ret=0                             <- valid write still works",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90136"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1b0a3d915320f1600e5ff43f8bc21b73118480b8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2c09cadec116eba3fdbcb5d8d8641f6777d4a11f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3921bb8635ff2836622df1cdf3194d4f3c1835a4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:17:06Z"
  }
}