CVE-2026-46244: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-fgx8-r5g7-5cr9
CVSS 9.1
CWE-682 CWE-823
Published
Advisory Summary

CVE-2026-46244 is a CRITICAL (CVSS 9.1) security vulnerability vulnerability (CWE-682: Incorrect Calculation) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-46244 at a Glance

CVE Identifier CVE-2026-46244
GHSA Identifier GHSA-fgx8-r5g7-5cr9
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-682: Incorrect Calculation
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:H/A:N).

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 None (A:N)

How to Fix CVE-2026-46244

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-2026-46244, 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-682: Incorrect Calculation, where the product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management. 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: netfilter: nft_inner: Fix IPv6 inner_thoff desync In nft_inner_parse_l2l3(), when processing inner IPv6 packets, ipv6_find_hdr() correctly computes the transport header offset traversing all extension headers, but the result is immediately overwritten with nhoff + sizeof(_ip6h) (40 bytes), which only accounts for the IPv6 base header. This creates a desync between inner_thoff (wrong — points to extension header start) and l4proto (correct — e.g., IPPROTO_TCP), enabling transport header forgery and potential firewall bypass. This issue affects stable versions from Linux 6.2. For comparison, the normal (non-inner) IPv6 path correctly preserves ipv6_find_hdr()'s result. Removing the incorrect overwrite ensures that ipv6_find_hdr()'s calculated transport header offset is preserved, thereby fixing the desynchronization.

References

NVD — CVE-2026-46244 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46244
Software Security Information SECURITY
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46244.json
git.kernel.org/stable/c/d0f98a3617... WEB
https://git.kernel.org/stable/c/d0f98a3617f6ae5b1e95cde1e68e7ead4a1279ce
git.kernel.org/stable/c/c161ad9157... WEB
https://git.kernel.org/stable/c/c161ad9157f5a0429b5ff94d9770faf3bf48d273
git.kernel.org/stable/c/b6a91f68eb... WEB
https://git.kernel.org/stable/c/b6a91f68ebfed9c38e0e9150f58a9b85da07181c
git.kernel.org/stable/c/870d59e2cf... WEB
https://git.kernel.org/stable/c/870d59e2cf218e7418491e26bad768cb16654582
git.kernel.org/stable/c/689bbf48c1... WEB
https://git.kernel.org/stable/c/689bbf48c1f45130086ae1c46ab83ea4c753c601
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2484451
Software Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2026-46244
access.redhat.com/errata/rhsa-2026:56... WEB
https://access.redhat.com/errata/RHSA-2026:56225
access.redhat.com/errata/rhsa-2026:55... WEB
https://access.redhat.com/errata/RHSA-2026:55763
access.redhat.com/errata/rhsa-2026:55... WEB
https://access.redhat.com/errata/RHSA-2026:55618
access.redhat.com/errata/rhsa-2026:36... WEB
https://access.redhat.com/errata/RHSA-2026:36018
access.redhat.com/errata/rhsa-2026:34... WEB
https://access.redhat.com/errata/RHSA-2026:34911
access.redhat.com/errata/rhsa-2026:34... WEB
https://access.redhat.com/errata/RHSA-2026:34443
access.redhat.com/errata/rhsa-2026:34... WEB
https://access.redhat.com/errata/RHSA-2026:34094
access.redhat.com/errata/rhsa-2026:33... WEB
https://access.redhat.com/errata/RHSA-2026:33215

Frequently Asked Questions

What is CVE-2026-46244?
CVE-2026-46244 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-682: Incorrect Calculation.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46244?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46244?
CVE-2026-46244 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:H/A:N.
What CWE is associated with CVE-2026-46244?
CVE-2026-46244 is classified under CWE-682: Incorrect Calculation (The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.).
How can I check Maven dependencies for CVE-2026-46244?
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
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  "database_specific" : {
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    "github_reviewed_at" : null,
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}