CVE-2026-52916: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-7cg4-79f4-7w2g
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CVSS 5.5
Published
Advisory Summary

CVE-2026-52916 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-2026-52916 at a Glance

CVE Identifier CVE-2026-52916
GHSA Identifier GHSA-7cg4-79f4-7w2g
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-2026-52916

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-2026-52916, 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: frag: disallow unicast fragment in fragment batadv_frag_skb_buffer() is called by batadv_batman_skb_recv() when a BATADV_UNICAST_FRAG packet is received. Once all fragments are collected and the packet is reassembled, batadv_recv_frag_packet() calls batadv_batman_skb_recv() again to process the defragmented payload. A malicious sender can craft a BATADV_UNICAST_FRAG packet whose reassembled payload is itself a BATADV_UNICAST_FRAG packet (matryoshka-style nesting). Each nesting level recurses through batadv_batman_skb_recv() without bound, growing the kernel stack until it is exhausted. Since refragmentation or fragments in fragments are not actually allowed, discard all packets which are still BATADV_UNICAST_FRAG packets after the defragmentation process.

References

NVD — CVE-2026-52916 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52916
git.kernel.org/stable/c/0c208fa385... WEB
https://git.kernel.org/stable/c/0c208fa3859e3a33a1c38bebc41d021166e94ac8
git.kernel.org/stable/c/5418be6c2e... WEB
https://git.kernel.org/stable/c/5418be6c2e117bf8a316582795a8e3ff90f45e5d
git.kernel.org/stable/c/5895ad21c7... WEB
https://git.kernel.org/stable/c/5895ad21c7059a652da83fb817510f7a1e962abf
git.kernel.org/stable/c/7138c35c9a... WEB
https://git.kernel.org/stable/c/7138c35c9ad39a2fca6264af6b87466471f04ffc
git.kernel.org/stable/c/aea54d0bbe... WEB
https://git.kernel.org/stable/c/aea54d0bbe156d5ab7d00d68f66149ff41f4612a
git.kernel.org/stable/c/b54e459cf8... WEB
https://git.kernel.org/stable/c/b54e459cf86943583c1aa2ee3081874e7ab1f5f3
git.kernel.org/stable/c/bc62216dc8... WEB
https://git.kernel.org/stable/c/bc62216dc8e221e3781afa14430f45208bfa9af9
git.kernel.org/stable/c/bcda4814dc... WEB
https://git.kernel.org/stable/c/bcda4814dc6524283c0b958882cb963d75fe411d

Frequently Asked Questions

What is CVE-2026-52916?
CVE-2026-52916 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-2026-52916?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52916?
CVE-2026-52916 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-2026-52916?
CVE-2026-52916 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-52916?
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-7cg4-79f4-7w2g",
  "modified" : "2026-07-08T15:31:43Z",
  "published" : "2026-06-24T09:30:48Z",
  "aliases" : [ "CVE-2026-52916" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: frag: disallow unicast fragment in fragment\n\nbatadv_frag_skb_buffer() is called by batadv_batman_skb_recv() when a\nBATADV_UNICAST_FRAG packet is received. Once all fragments are collected\nand the packet is reassembled, batadv_recv_frag_packet() calls\nbatadv_batman_skb_recv() again to process the defragmented payload.\n\nA malicious sender can craft a BATADV_UNICAST_FRAG packet whose reassembled\npayload is itself a BATADV_UNICAST_FRAG packet (matryoshka-style nesting).\nEach nesting level recurses through batadv_batman_skb_recv() without bound,\ngrowing the kernel stack until it is exhausted.\n\nSince refragmentation or fragments in fragments are not actually allowed,\ndiscard all packets which are still BATADV_UNICAST_FRAG packets after the\ndefragmentation process.",
  "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-2026-52916"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0c208fa3859e3a33a1c38bebc41d021166e94ac8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5418be6c2e117bf8a316582795a8e3ff90f45e5d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5895ad21c7059a652da83fb817510f7a1e962abf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7138c35c9ad39a2fca6264af6b87466471f04ffc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/aea54d0bbe156d5ab7d00d68f66149ff41f4612a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b54e459cf86943583c1aa2ee3081874e7ab1f5f3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bc62216dc8e221e3781afa14430f45208bfa9af9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bcda4814dc6524283c0b958882cb963d75fe411d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T08:16:21Z"
  }
}