CVE-2026-52958: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-xhq7-864q-xxj8
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CVSS 9.1
CWE-125
Published
Advisory Summary

CVE-2026-52958 is a CRITICAL (CVSS 9.1) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-52958 at a Glance

CVE Identifier CVE-2026-52958
GHSA Identifier GHSA-xhq7-864q-xxj8
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.1

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

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

How to Fix CVE-2026-52958

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-2026-52958, 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-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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: libceph: Fix potential out-of-bounds access in osdmap_decode() When decoding osd_state and osd_weight from an incoming osdmap in osdmap_decode(), both are decoded for each osd, i.e., map->max_osd times. The ceph_decode_need() check only accounts for sizeof(*map->osd_weight) once. This can potentially result in an out-of-bounds memory access if the incoming message is corrupted such that the max_osd value exceeds the actual content of the osdmap message. This patch fixes the issue by changing the corresponding part in the ceph_decode_need() check to account for map->max_osd*sizeof(*map->osd_weight).

References

NVD — CVE-2026-52958 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52958
git.kernel.org/stable/c/0d2dd7e6bb... WEB
https://git.kernel.org/stable/c/0d2dd7e6bb74fd7712aa73457a4a821906c6863a
git.kernel.org/stable/c/35d0ed82d0... WEB
https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649
git.kernel.org/stable/c/36a79759a2... WEB
https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098
git.kernel.org/stable/c/3f2575bb7f... WEB
https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4
git.kernel.org/stable/c/48df98d12b... WEB
https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197
git.kernel.org/stable/c/8713bbc4b2... WEB
https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be
git.kernel.org/stable/c/e7187f33c0... WEB
https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f
git.kernel.org/stable/c/ee93369464... WEB
https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b

Frequently Asked Questions

What is CVE-2026-52958?
CVE-2026-52958 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-52958?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-52958?
CVE-2026-52958 has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2026-52958?
CVE-2026-52958 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-52958?
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-xhq7-864q-xxj8",
  "modified" : "2026-06-28T09:31:37Z",
  "published" : "2026-06-24T18:32:41Z",
  "aliases" : [ "CVE-2026-52958" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Fix potential out-of-bounds access in osdmap_decode()\n\nWhen decoding osd_state and osd_weight from an incoming osdmap in\nosdmap_decode(), both are decoded for each osd, i.e., map->max_osd\ntimes. The ceph_decode_need() check only accounts for\nsizeof(*map->osd_weight) once. This can potentially result in an\nout-of-bounds memory access if the incoming message is corrupted such\nthat the max_osd value exceeds the actual content of the osdmap message.\n\nThis patch fixes the issue by changing the corresponding part in the\nceph_decode_need() check to account for\nmap->max_osd*sizeof(*map->osd_weight).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-52958"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0d2dd7e6bb74fd7712aa73457a4a821906c6863a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T17:17:06Z"
  }
}