CVE-2026-10268: Software Security Vulnerability Vulnerability

LOW
Advisory Identifier: GHSA-gqw4-cq8m-g989
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CVSS 3.3
Published
Advisory Summary

CVE-2026-10268 is a LOW (CVSS 3.3) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-10268 at a Glance

CVE Identifier CVE-2026-10268
GHSA Identifier GHSA-gqw4-cq8m-g989
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.3

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:L).

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 Low (A:L)

How to Fix CVE-2026-10268

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-2026-10268, 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

A weakness has been identified in janet-lang janet up to 1.41.0. This vulnerability affects the function unmarshal_one_fiber of the file src/core/marsh.c. Executing a manipulation can lead to integer overflow. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. This patch is called d9b1d711ea1fde52ac73a82088b512a3e17bad0d. A patch should be applied to remediate this issue.

References

NVD — CVE-2026-10268 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10268
Software Source Repository REPOSITORY
https://github.com/janet-lang/janet/issues/1744
Security Fix Commit FIX COMMIT
https://github.com/janet-lang/janet/commit/d9b1d711ea1fde52ac73a82088b512a3e17bad0d
Software Source Repository REPOSITORY
https://github.com/biniamf/pocs/tree/main/janet-marsh-unmarshal-intovf
Software Source Repository REPOSITORY
https://github.com/janet-lang/janet
vuldb.com/cve/cve-2026-10268 WEB
https://vuldb.com/cve/CVE-2026-10268
vuldb.com/submit/825075 WEB
https://vuldb.com/submit/825075
vuldb.com/vuln/367547 WEB
https://vuldb.com/vuln/367547
vuldb.com/vuln/367547/cti WEB
https://vuldb.com/vuln/367547/cti

Frequently Asked Questions

What is CVE-2026-10268?
CVE-2026-10268 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-2026-10268?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-10268?
CVE-2026-10268 has a CVSS v3.1 base score of 3.3 (LOW) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-10268?
CVE-2026-10268 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-10268?
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-gqw4-cq8m-g989",
  "modified" : "2026-06-01T18:31:49Z",
  "published" : "2026-06-01T18:31:49Z",
  "aliases" : [ "CVE-2026-10268" ],
  "details" : "A weakness has been identified in janet-lang janet up to 1.41.0. This vulnerability affects the function unmarshal_one_fiber of the file src/core/marsh.c. Executing a manipulation can lead to integer overflow. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. This patch is called d9b1d711ea1fde52ac73a82088b512a3e17bad0d. A patch should be applied to remediate this issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-10268"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/janet-lang/janet/issues/1744"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/janet-lang/janet/commit/d9b1d711ea1fde52ac73a82088b512a3e17bad0d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/biniamf/pocs/tree/main/janet-marsh-unmarshal-intovf"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/janet-lang/janet"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/cve/CVE-2026-10268"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/825075"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/367547"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/367547/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "LOW",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-01T17:16:42Z"
  }
}