CVE-2026-52994: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-c44p-q7r3-5852
Share
CVSS 5.5
Published
Advisory Summary

CVE-2026-52994 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-52994 at a Glance

CVE Identifier CVE-2026-52994
GHSA Identifier GHSA-c44p-q7r3-5852
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

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:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-52994

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-2026-52994, 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: vsock/virtio: fix MSG_ZEROCOPY pinned-pages accounting virtio_transport_init_zcopy_skb() uses iter->count as the size argument for msg_zerocopy_realloc(), which in turn passes it to mm_account_pinned_pages() for RLIMIT_MEMLOCK accounting. However, this function is called after virtio_transport_fill_skb() has already consumed the iterator via __zerocopy_sg_from_iter(), so on the last skb, iter->count will be 0, skipping the RLIMIT_MEMLOCK enforcement. Pass pkt_len (the total bytes being sent) as an explicit parameter to virtio_transport_init_zcopy_skb() instead of reading the already-consumed iter->count. This matches TCP and UDP, which both call msg_zerocopy_realloc() with the original message size.

References

NVD — CVE-2026-52994 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52994
git.kernel.org/stable/c/1cb36e2522... WEB
https://git.kernel.org/stable/c/1cb36e252211506f51095fe7ced8286cc77b4c80
git.kernel.org/stable/c/6af1736b58... WEB
https://git.kernel.org/stable/c/6af1736b5810bc8a4a43a8518530113f5a757dc1
git.kernel.org/stable/c/d011795007... WEB
https://git.kernel.org/stable/c/d0117950075f0a9d5944980784c719d8ebcd4bff

Frequently Asked Questions

What is CVE-2026-52994?
CVE-2026-52994 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-2026-52994?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52994?
CVE-2026-52994 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-52994?
CVE-2026-52994 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-52994?
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-c44p-q7r3-5852",
  "modified" : "2026-07-15T15:32:43Z",
  "published" : "2026-06-24T18:32:42Z",
  "aliases" : [ "CVE-2026-52994" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: fix MSG_ZEROCOPY pinned-pages accounting\n\nvirtio_transport_init_zcopy_skb() uses iter->count as the size argument\nfor msg_zerocopy_realloc(), which in turn passes it to\nmm_account_pinned_pages() for RLIMIT_MEMLOCK accounting. However, this\nfunction is called after virtio_transport_fill_skb() has already consumed\nthe iterator via __zerocopy_sg_from_iter(), so on the last skb, iter->count\nwill be 0, skipping the RLIMIT_MEMLOCK enforcement.\n\nPass pkt_len (the total bytes being sent) as an explicit parameter to\nvirtio_transport_init_zcopy_skb() instead of reading the already-consumed\niter->count.\n\nThis matches TCP and UDP, which both call msg_zerocopy_realloc() with\nthe original message size.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-52994"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1cb36e252211506f51095fe7ced8286cc77b4c80"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6af1736b5810bc8a4a43a8518530113f5a757dc1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d0117950075f0a9d5944980784c719d8ebcd4bff"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T17:17:10Z"
  }
}