CVE-2026-68158: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-jg8v-h49p-mvhw
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CVSS 9.8
CWE-190
Published
Advisory Summary

CVE-2026-68158 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (CWE-190: Integer Overflow or Wraparound) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. this occurs when an integer value is incremented to a value that is too large to store in the associated representation. when this occurs, the value may become a very small or negative number.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-68158 at a Glance

CVE Identifier CVE-2026-68158
GHSA Identifier GHSA-jg8v-h49p-mvhw
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-190: Integer Overflow or Wraparound
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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

How to Fix CVE-2026-68158

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-2026-68158, 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-190: Integer Overflow or Wraparound, where the product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. this occurs when an integer value is incremented to a value that is too large to store in the associated representation. when this occurs, the value may become a very small or negative number. 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 multiplication overflow in decode_new_up_state_weight() If a message of type CEPH_MSG_OSD_MAP contains a (maliciously) corrupted osdmap, out-of-bounds memory accesses may occur in decode_new_up_state_weight(). This happens because the bounds check for the new_state part is based on calculating its length depending on a len value read from the incoming message. This calculation may overflow leading to an incorrect bounds check. Subsequently, out-of-bounds reads may occur when decoding this part. This patch switches the multiplication to use check_mul_overflow() to abort processing the osdmap if an overflow occurred. Therefore, osdmaps/messages containing large values for len that result in a multiplication overflow are treated as invalid. [ idryomov: rename new_state_len -> new_state_item_size, formatting ]

References

NVD — CVE-2026-68158 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68158
git.kernel.org/stable/c/05c90e0592... WEB
https://git.kernel.org/stable/c/05c90e059269f087becfcce23348496085835c29
git.kernel.org/stable/c/143ba49ead... WEB
https://git.kernel.org/stable/c/143ba49ead77ec483c0326f8aaad8649874e99c4
git.kernel.org/stable/c/1732d89dfc... WEB
https://git.kernel.org/stable/c/1732d89dfcd74f6fde9ce70900d316c4a151c153
git.kernel.org/stable/c/2ceee3b77b... WEB
https://git.kernel.org/stable/c/2ceee3b77b83052648c40fef965f836fd7699d26
git.kernel.org/stable/c/98917a499e... WEB
https://git.kernel.org/stable/c/98917a499ec7064c14fc56d180a4fd636fc2784c
git.kernel.org/stable/c/bee4b5b53e... WEB
https://git.kernel.org/stable/c/bee4b5b53e7bff0467fd916cc44c9b190733c6bd
git.kernel.org/stable/c/e4473751cc... WEB
https://git.kernel.org/stable/c/e4473751cc37db41f3f7da25d64a23e0c74570f1
git.kernel.org/stable/c/f6961070c3... WEB
https://git.kernel.org/stable/c/f6961070c326bd158c38fa48756cde2bd78c4aaa

Frequently Asked Questions

What is CVE-2026-68158?
CVE-2026-68158 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-190: Integer Overflow or Wraparound.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-68158?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-68158?
CVE-2026-68158 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-68158?
CVE-2026-68158 is classified under CWE-190: Integer Overflow or Wraparound (The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.).
How can I check Maven dependencies for CVE-2026-68158?
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-jg8v-h49p-mvhw",
  "modified" : "2026-08-19T18:32:08Z",
  "published" : "2026-08-10T15:33:38Z",
  "aliases" : [ "CVE-2026-68158" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Fix multiplication overflow in decode_new_up_state_weight()\n\nIf a message of type CEPH_MSG_OSD_MAP contains a (maliciously) corrupted\nosdmap, out-of-bounds memory accesses may occur in\ndecode_new_up_state_weight(). This happens because the bounds check for\nthe new_state part is based on calculating its length depending on a len\nvalue read from the incoming message. This calculation may overflow\nleading to an incorrect bounds check. Subsequently, out-of-bounds reads\nmay occur when decoding this part.\n\nThis patch switches the multiplication to use check_mul_overflow() to\nabort processing the osdmap if an overflow occurred. Therefore,\nosdmaps/messages containing large values for len that result in a\nmultiplication overflow are treated as invalid.\n\n[ idryomov: rename new_state_len -> new_state_item_size, formatting ]",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/05c90e059269f087becfcce23348496085835c29"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/143ba49ead77ec483c0326f8aaad8649874e99c4"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1732d89dfcd74f6fde9ce70900d316c4a151c153"
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    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e4473751cc37db41f3f7da25d64a23e0c74570f1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f6961070c326bd158c38fa48756cde2bd78c4aaa"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-190" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:02Z"
  }
}