CVE-2026-52934: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-w473-pp3w-rqc2
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CVSS 8.8
Published
Advisory Summary

CVE-2026-52934 is a HIGH (CVSS 8.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-52934 at a Glance

CVE Identifier CVE-2026-52934
GHSA Identifier GHSA-w473-pp3w-rqc2
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-52934

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-2026-52934, 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: batman-adv: tvlv: reject oversized TVLV packets batadv_tvlv_container_ogm_append() builds a TVLV packet section from the tvlv.container_list. The total size of this section is computed by batadv_tvlv_container_list_size(), which sums the sizes of all registered containers. The return type and accumulator in batadv_tvlv_container_list_size() were u16. If the accumulated size exceeds U16_MAX, the value wraps around, causing the subsequent allocation in batadv_tvlv_container_ogm_append() to be undersized. The memcpy-style copy that follows would then write beyond the end of the allocated buffer, corrupting kernel memory. Fix this by widening the return type of batadv_tvlv_container_list_size() to size_t. In batadv_tvlv_container_ogm_append(), check the computed length against U16_MAX before proceeding, and bail out as if the allocation had failed when the limit is exceeded.

References

NVD — CVE-2026-52934 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52934
git.kernel.org/stable/c/13493b00dd... WEB
https://git.kernel.org/stable/c/13493b00dd1e05a705981e052158652ea23eb482
git.kernel.org/stable/c/1595628a2f... WEB
https://git.kernel.org/stable/c/1595628a2f877d052eda18865ccf539392c47c04
git.kernel.org/stable/c/6448a49344... WEB
https://git.kernel.org/stable/c/6448a49344e87487b61bd88cb850cd694a0f576d
git.kernel.org/stable/c/94a3d72cd9... WEB
https://git.kernel.org/stable/c/94a3d72cd9b21116d7c6d5bdc57c11401fc28557
git.kernel.org/stable/c/94db72e9da... WEB
https://git.kernel.org/stable/c/94db72e9dac202e017ee3db22c59d17e4f3bf171
git.kernel.org/stable/c/c02aa6c0c9... WEB
https://git.kernel.org/stable/c/c02aa6c0c9d1bea9bb75dea362b75ad225137bae
git.kernel.org/stable/c/ede47988ac... WEB
https://git.kernel.org/stable/c/ede47988ac5687793745b17c1634a496a2299919
git.kernel.org/stable/c/f50487e356... WEB
https://git.kernel.org/stable/c/f50487e3566358b2b982b7801945e858c78ad9ab

Frequently Asked Questions

What is CVE-2026-52934?
CVE-2026-52934 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-2026-52934?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52934?
CVE-2026-52934 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-52934?
CVE-2026-52934 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-52934?
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-w473-pp3w-rqc2",
  "modified" : "2026-06-28T09:31:36Z",
  "published" : "2026-06-24T09:30:48Z",
  "aliases" : [ "CVE-2026-52934" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: tvlv: reject oversized TVLV packets\n\nbatadv_tvlv_container_ogm_append() builds a TVLV packet section from\nthe tvlv.container_list. The total size of this section is computed by\nbatadv_tvlv_container_list_size(), which sums the sizes of all registered\ncontainers.\n\nThe return type and accumulator in batadv_tvlv_container_list_size() were\nu16. If the accumulated size exceeds U16_MAX, the value wraps around,\ncausing the subsequent allocation in batadv_tvlv_container_ogm_append()\nto be undersized. The memcpy-style copy that follows would then write\nbeyond the end of the allocated buffer, corrupting kernel memory.\n\nFix this by widening the return type of batadv_tvlv_container_list_size()\nto size_t. In batadv_tvlv_container_ogm_append(), check the computed length\nagainst U16_MAX before proceeding, and bail out as if the allocation had\nfailed when the limit is exceeded.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-52934"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/13493b00dd1e05a705981e052158652ea23eb482"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1595628a2f877d052eda18865ccf539392c47c04"
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    "type" : "WEB",
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    "url" : "https://git.kernel.org/stable/c/f50487e3566358b2b982b7801945e858c78ad9ab"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T08:16:23Z"
  }
}