CVE-2026-90049: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-px64-7mq2-m5mm
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CVSS 9.3
Published
Advisory Summary

CVE-2026-90049 is a CRITICAL (CVSS 9.3) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-90049 at a Glance

CVE Identifier CVE-2026-90049
GHSA Identifier GHSA-px64-7mq2-m5mm
Severity CRITICAL
CVSS v3.1 Base Score 9.3
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.3

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:C/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 Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-90049

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-2026-90049, 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: skbuff: don't skb_tx_error() the source skb in skb_zerocopy() skb_zerocopy() copies frags from @from into @to. On an skb_orphan_frags() failure it calls skb_tx_error(@from), a destructive operation on the source skb the copy helper does not own. That completes @from's zerocopy uarg and clears SKBFL_ALL_ZEROCOPY, including the SKBFL_SHARED_FRAG page-ownership marker. Both callers already report the failure on their own drop path. nfnetlink_queue does it at nla_put_failure, and Open vSwitch does it in the flow-miss drop arm of ovs_dp_process_packet(), so nothing is lost by dropping it here. On Open vSwitch's OVS_ACTION_ATTR_USERSPACE path the skb is not freed on this error: do_execute_actions() ignores output_userspace()'s return value and, unless the upcall was the last action, keeps forwarding the same skb through the flow's remaining actions. The uarg is completed while that skb is still in flight, telling the producer its buffers are free, and SKBFL_SHARED_FRAG is cleared on an skb the rest of the stack still handles. That flag is what makes esp_input() call skb_cow_data() instead of decrypting in place, so a later local ESP delivery can decrypt over frags the skb does not own privately. Leave error reporting to the callers.

References

NVD — CVE-2026-90049 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90049
git.kernel.org/stable/c/04dd250a78... WEB
https://git.kernel.org/stable/c/04dd250a78e268af3e7124beb1dc10ec1dd88d60
git.kernel.org/stable/c/767ec2a65c... WEB
https://git.kernel.org/stable/c/767ec2a65cc022d303b0c9c12811e7db22057341
git.kernel.org/stable/c/8069643ae6... WEB
https://git.kernel.org/stable/c/8069643ae64dfdf634b6c78c7f622e5323031436
git.kernel.org/stable/c/849bdb8312... WEB
https://git.kernel.org/stable/c/849bdb83123760a865bcb2970127f4c0b9423ba3
git.kernel.org/stable/c/8ece906150... WEB
https://git.kernel.org/stable/c/8ece906150128d5ec2462aabcc978c568433eca4
git.kernel.org/stable/c/a13b1e80e5... WEB
https://git.kernel.org/stable/c/a13b1e80e5015cd732440b475c0ef443dc4a2157
git.kernel.org/stable/c/bab5a851e4... WEB
https://git.kernel.org/stable/c/bab5a851e44a3601d31f2aa8043f385bb50ac5d9
git.kernel.org/stable/c/fb10e0e9b2... WEB
https://git.kernel.org/stable/c/fb10e0e9b220a2eed08931a60dbaad9a2370c908

Frequently Asked Questions

What is CVE-2026-90049?
CVE-2026-90049 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-2026-90049?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-90049?
CVE-2026-90049 has a CVSS v3.1 base score of 9.3 (CRITICAL) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-90049?
CVE-2026-90049 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90049?
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-px64-7mq2-m5mm",
  "modified" : "2026-09-16T15:31:09Z",
  "published" : "2026-09-16T12:30:46Z",
  "aliases" : [ "CVE-2026-90049" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: skbuff: don't skb_tx_error() the source skb in skb_zerocopy()\n\nskb_zerocopy() copies frags from @from into @to. On an\nskb_orphan_frags() failure it calls skb_tx_error(@from), a destructive\noperation on the source skb the copy helper does not own. That completes\n@from's zerocopy uarg and clears SKBFL_ALL_ZEROCOPY, including the\nSKBFL_SHARED_FRAG page-ownership marker.\n\nBoth callers already report the failure on their own drop path.\nnfnetlink_queue does it at nla_put_failure, and Open vSwitch does it in\nthe flow-miss drop arm of ovs_dp_process_packet(), so nothing is lost by\ndropping it here.\n\nOn Open vSwitch's OVS_ACTION_ATTR_USERSPACE path the skb is not freed on\nthis error: do_execute_actions() ignores output_userspace()'s return\nvalue and, unless the upcall was the last action, keeps forwarding the\nsame skb through the flow's remaining actions. The uarg is completed\nwhile that skb is still in flight, telling the producer its buffers are\nfree, and SKBFL_SHARED_FRAG is cleared on an skb the rest of the stack\nstill handles. That flag is what makes esp_input() call skb_cow_data()\ninstead of decrypting in place, so a later local ESP delivery can\ndecrypt over frags the skb does not own privately.\n\nLeave error reporting to the callers.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90049"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/04dd250a78e268af3e7124beb1dc10ec1dd88d60"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/767ec2a65cc022d303b0c9c12811e7db22057341"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8069643ae64dfdf634b6c78c7f622e5323031436"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/849bdb83123760a865bcb2970127f4c0b9423ba3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8ece906150128d5ec2462aabcc978c568433eca4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a13b1e80e5015cd732440b475c0ef443dc4a2157"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bab5a851e44a3601d31f2aa8043f385bb50ac5d9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fb10e0e9b220a2eed08931a60dbaad9a2370c908"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T11:17:18Z"
  }
}