CVE-2026-43371: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-53cc-xh3p-4x9v
CVSS 5.5
CWE-401
Published
Advisory Summary

CVE-2026-43371 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-401: Missing Release of Memory after Effective Lifetime) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-43371 at a Glance

CVE Identifier CVE-2026-43371
GHSA Identifier GHSA-53cc-xh3p-4x9v
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-401: Missing Release of Memory after Effective Lifetime
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-2026-43371

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-2026-43371, 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 CWE-401: Missing Release of Memory after Effective Lifetime, where the product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse. 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: macb: Shuffle the tx ring before enabling tx Quanyang observed that when using an NFS rootfs on an AMD ZynqMp board, the rootfs may take an extended time to recover after a suspend. Upon investigation, it was determined that the issue originates from a problem in the macb driver. According to the Zynq UltraScale TRM [1], when transmit is disabled, the transmit buffer queue pointer resets to point to the address specified by the transmit buffer queue base address register. In the current implementation, the code merely resets `queue->tx_head` and `queue->tx_tail` to '0'. This approach presents several issues: - Packets already queued in the tx ring are silently lost, leading to memory leaks since the associated skbs cannot be released. - Concurrent write access to `queue->tx_head` and `queue->tx_tail` may occur from `macb_tx_poll()` or `macb_start_xmit()` when these values are reset to '0'. - The transmission may become stuck on a packet that has already been sent out, with its 'TX_USED' bit set, but has not yet been processed. However, due to the manipulation of 'queue->tx_head' and 'queue->tx_tail', `macb_tx_poll()` incorrectly assumes there are no packets to handle because `queue->tx_head == queue->tx_tail`. This issue is only resolved when a new packet is placed at this position. This is the root cause of the prolonged recovery time observed for the NFS root filesystem. To resolve this issue, shuffle the tx ring and tx skb array so that the first unsent packet is positioned at the start of the tx ring. Additionally, ensure that updates to `queue->tx_head` and `queue->tx_tail` are properly protected with the appropriate lock. [1] https://docs.amd.com/v/u/en-US/ug1085-zynq-ultrascale-trm

References

Frequently Asked Questions

What is CVE-2026-43371?
CVE-2026-43371 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-401: Missing Release of Memory after Effective Lifetime.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-43371?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-43371?
CVE-2026-43371 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-2026-43371?
CVE-2026-43371 is classified under CWE-401: Missing Release of Memory after Effective Lifetime (The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.).
How can I check Maven dependencies for CVE-2026-43371?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-53cc-xh3p-4x9v",
  "modified" : "2026-05-15T15:30:34Z",
  "published" : "2026-05-08T15:31:26Z",
  "aliases" : [ "CVE-2026-43371" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: Shuffle the tx ring before enabling tx\n\nQuanyang observed that when using an NFS rootfs on an AMD ZynqMp board,\nthe rootfs may take an extended time to recover after a suspend.\nUpon investigation, it was determined that the issue originates from a\nproblem in the macb driver.\n\nAccording to the Zynq UltraScale TRM [1], when transmit is disabled,\nthe transmit buffer queue pointer resets to point to the address\nspecified by the transmit buffer queue base address register.\n\nIn the current implementation, the code merely resets `queue->tx_head`\nand `queue->tx_tail` to '0'. This approach presents several issues:\n\n- Packets already queued in the tx ring are silently lost,\n  leading to memory leaks since the associated skbs cannot be released.\n\n- Concurrent write access to `queue->tx_head` and `queue->tx_tail` may\n  occur from `macb_tx_poll()` or `macb_start_xmit()` when these values\n  are reset to '0'.\n\n- The transmission may become stuck on a packet that has already been sent\n  out, with its 'TX_USED' bit set, but has not yet been processed. However,\n  due to the manipulation of 'queue->tx_head' and 'queue->tx_tail',\n  `macb_tx_poll()` incorrectly assumes there are no packets to handle\n  because `queue->tx_head == queue->tx_tail`. This issue is only resolved\n  when a new packet is placed at this position. This is the root cause of\n  the prolonged recovery time observed for the NFS root filesystem.\n\nTo resolve this issue, shuffle the tx ring and tx skb array so that\nthe first unsent packet is positioned at the start of the tx ring.\nAdditionally, ensure that updates to `queue->tx_head` and\n`queue->tx_tail` are properly protected with the appropriate lock.\n\n[1] https://docs.amd.com/v/u/en-US/ug1085-zynq-ultrascale-trm",
  "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-2026-43371"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0a47c3889fcd843c72aa57fa8c4d06f5801fced4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/403182e0771b250cfde0fe7e1081d095ceaf8230"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/58f5d34f88e8f00910b692537f7b2efdb8c3705d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/881a0263d502e1a93ebc13a78254e9ad19520232"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/88f974fe118cb4653f029929ecbca7cfe06132ae"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c6783bfa31a59f34fe4feb1bdbf67791ef3fb0b7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-401" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-08T15:16:48Z"
  }
}