CVE-2026-31675: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-2gh3-wm75-4q8m
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CVSS 7.8
CWE-125 CWE-787
Published
Advisory Summary

CVE-2026-31675 is a HIGH (CVSS 7.8) 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-2026-31675 at a Glance

CVE Identifier CVE-2026-31675
GHSA Identifier GHSA-2gh3-wm75-4q8m
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-31675

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-2026-31675, 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: net/sched: sch_netem: fix out-of-bounds access in packet corruption In netem_enqueue(), the packet corruption logic uses get_random_u32_below(skb_headlen(skb)) to select an index for modifying skb->data. When an AF_PACKET TX_RING sends fully non-linear packets over an IPIP tunnel, skb_headlen(skb) evaluates to 0. Passing 0 to get_random_u32_below() takes the variable-ceil slow path which returns an unconstrained 32-bit random integer. Using this unconstrained value as an offset into skb->data results in an out-of-bounds memory access. Fix this by verifying skb_headlen(skb) is non-zero before attempting to corrupt the linear data area. Fully non-linear packets will silently bypass the corruption logic.

References

NVD — CVE-2026-31675 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31675
git.kernel.org/stable/c/13a66ca1e2... WEB
https://git.kernel.org/stable/c/13a66ca1e235d4bcd53d12d4c68490cad7f8e46f
git.kernel.org/stable/c/3a2999704a... WEB
https://git.kernel.org/stable/c/3a2999704ac36cfb4041fed3652d26a3373e8d12
git.kernel.org/stable/c/4fd258e281... WEB
https://git.kernel.org/stable/c/4fd258e281fa8bc15e9ce2c7691941537e9258ad
git.kernel.org/stable/c/a14b568633... WEB
https://git.kernel.org/stable/c/a14b56863348686dd0387eea8ce66b85cf455908
git.kernel.org/stable/c/d64cb81dcb... WEB
https://git.kernel.org/stable/c/d64cb81dcbd54927515a7f65e5e24affdc73c14b

Frequently Asked Questions

What is CVE-2026-31675?
CVE-2026-31675 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-2026-31675?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-31675?
CVE-2026-31675 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-31675?
CVE-2026-31675 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-2026-31675?
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-2gh3-wm75-4q8m",
  "modified" : "2026-04-27T15:30:50Z",
  "published" : "2026-04-25T09:30:28Z",
  "aliases" : [ "CVE-2026-31675" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: sch_netem: fix out-of-bounds access in packet corruption\n\nIn netem_enqueue(), the packet corruption logic uses\nget_random_u32_below(skb_headlen(skb)) to select an index for\nmodifying skb->data. When an AF_PACKET TX_RING sends fully non-linear\npackets over an IPIP tunnel, skb_headlen(skb) evaluates to 0.\n\nPassing 0 to get_random_u32_below() takes the variable-ceil slow path\nwhich returns an unconstrained 32-bit random integer. Using this\nunconstrained value as an offset into skb->data results in an\nout-of-bounds memory access.\n\nFix this by verifying skb_headlen(skb) is non-zero before attempting\nto corrupt the linear data area. Fully non-linear packets will silently\nbypass the corruption logic.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-31675"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/13a66ca1e235d4bcd53d12d4c68490cad7f8e46f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3a2999704ac36cfb4041fed3652d26a3373e8d12"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4fd258e281fa8bc15e9ce2c7691941537e9258ad"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a14b56863348686dd0387eea8ce66b85cf455908"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d64cb81dcbd54927515a7f65e5e24affdc73c14b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125", "CWE-787" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-04-25T09:16:01Z"
  }
}