CVE-2026-90081: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-23r9-76mg-5gpp
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Advisory Summary

CVE-2026-90081 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-2026-90081 at a Glance

CVE Identifier CVE-2026-90081
GHSA Identifier GHSA-23r9-76mg-5gpp
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-2026-90081

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-2026-90081, 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: net/rds: use wq_has_sleeper() in rds_cong_map_updated() rds_cong_map_updated() runs after a peer's congestion map has been rewritten (by rds_tcp_cong_recv() and rds_ib_cong_recv(), or the clear-all in the loopback and IB send-completion paths). It bumps rds_cong_generation and then checks waitqueue_active() on map->m_waitq and on rds_poll_waitq to decide whether anyone needs waking. atomic_inc() carries no ordering and waitqueue_active() is a plain load, so nothing orders the map and generation stores before the wait queue reads. The waiters do the mirror image: rds_cong_wait() adds itself to m_waitq and then tests the port bit, and rds_poll() registers on rds_poll_waitq and then reads the generation. That is the store-buffering pattern described above waitqueue_active() in include/linux/wait.h - the updater can observe an empty wait queue while the waiter still observes the port as congested, and no wake-up is issued. rds_cong_wait() is an interruptible sleep with no timeout, so a sender blocked on a congested port stays blocked until the next congestion update from that peer arrives or a signal is delivered. A poll() waiter misses the map-updated notification the same way. Use wq_has_sleeper(), which is waitqueue_active() preceded by the required full barrier, as rds_tcp_state_change() already does for the same pattern.

References

NVD — CVE-2026-90081 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90081
git.kernel.org/stable/c/0e169f6a2a... WEB
https://git.kernel.org/stable/c/0e169f6a2adeb17b5577ed7e8abd642465bb50ec
git.kernel.org/stable/c/281f9fda2e... WEB
https://git.kernel.org/stable/c/281f9fda2e06d6c211bb365a5379ed2e05cc2e21
git.kernel.org/stable/c/2a809d7896... WEB
https://git.kernel.org/stable/c/2a809d7896dbf18e1ecfbdd930f71c9fc298b16d
git.kernel.org/stable/c/42884bd8b8... WEB
https://git.kernel.org/stable/c/42884bd8b8fd023d6a610a695bd5ddd1d5dece17
git.kernel.org/stable/c/a526214b9f... WEB
https://git.kernel.org/stable/c/a526214b9f0548ca0e53a6e0d1727d8ea9befc23
git.kernel.org/stable/c/bf2b813072... WEB
https://git.kernel.org/stable/c/bf2b8130723efcb5b86c3ddb6317c3a9b2a9cfc5
git.kernel.org/stable/c/d4f4846619... WEB
https://git.kernel.org/stable/c/d4f484661961636eb90d287050959e613795f73a
git.kernel.org/stable/c/fa4b98e891... WEB
https://git.kernel.org/stable/c/fa4b98e891fda28cc0638d809c6125ec63d8319d

Frequently Asked Questions

What is CVE-2026-90081?
CVE-2026-90081 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-2026-90081?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90081?
CVE-2026-90081 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90081?
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-23r9-76mg-5gpp",
  "modified" : "2026-09-17T18:31:50Z",
  "published" : "2026-09-17T18:31:50Z",
  "aliases" : [ "CVE-2026-90081" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: use wq_has_sleeper() in rds_cong_map_updated()\n\nrds_cong_map_updated() runs after a peer's congestion map has been\nrewritten (by rds_tcp_cong_recv() and rds_ib_cong_recv(), or the\nclear-all in the loopback and IB send-completion paths).  It bumps\nrds_cong_generation and then checks waitqueue_active() on\nmap->m_waitq and on rds_poll_waitq to decide whether anyone needs\nwaking.  atomic_inc() carries no ordering and waitqueue_active() is a\nplain load, so nothing orders the map and generation stores before\nthe wait queue reads.  The waiters do the mirror image: rds_cong_wait()\nadds itself to m_waitq and then tests the port bit, and rds_poll()\nregisters on rds_poll_waitq and then reads the generation.  That is\nthe store-buffering pattern described above waitqueue_active() in\ninclude/linux/wait.h - the updater can observe an empty wait queue\nwhile the waiter still observes the port as congested, and no wake-up\nis issued.\n\nrds_cong_wait() is an interruptible sleep with no timeout, so a\nsender blocked on a congested port stays blocked until the next\ncongestion update from that peer arrives or a signal is delivered.\nA poll() waiter misses the map-updated notification the same way.\n\nUse wq_has_sleeper(), which is waitqueue_active() preceded by the\nrequired full barrier, as rds_tcp_state_change() already does for\nthe same pattern.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90081"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0e169f6a2adeb17b5577ed7e8abd642465bb50ec"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/281f9fda2e06d6c211bb365a5379ed2e05cc2e21"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2a809d7896dbf18e1ecfbdd930f71c9fc298b16d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/42884bd8b8fd023d6a610a695bd5ddd1d5dece17"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a526214b9f0548ca0e53a6e0d1727d8ea9befc23"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bf2b8130723efcb5b86c3ddb6317c3a9b2a9cfc5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d4f484661961636eb90d287050959e613795f73a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fa4b98e891fda28cc0638d809c6125ec63d8319d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:16:57Z"
  }
}