CVE-2026-74476: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-p72r-vmh2-4xj6
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CVSS 9.1
Published
Advisory Summary

CVE-2026-74476 is a CRITICAL (CVSS 9.1) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74476 at a Glance

CVE Identifier CVE-2026-74476
GHSA Identifier GHSA-p72r-vmh2-4xj6
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification General Security Weakness
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-2026-74476

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-2026-74476, 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

In the Linux kernel, the following vulnerability has been resolved: veth: convert frag_list skbs before running XDP A frag_list skb can reach veth with data_len set but nr_frags zero. veth_convert_skb_to_xdp_buff() only converts skbs that are shared, locked, have frags[], or do not have enough headroom. It later uses skb_is_nonlinear() to decide whether to set XDP_FLAGS_HAS_FRAGS and xdp_frags_size. That exposes frag_list data to XDP as if it were stored in frags[], but frags[] is empty. AF_XDP copy mode can then trust the bogus XDP fragment metadata, walk an empty fragment entry, and crash in memcpy() from __xsk_rcv(). Route non-linear skbs through skb_pp_cow_data() before exposing them to XDP, and only advertise XDP frags when the resulting skb has frags[]. skb_copy_bits() already handles frag_list input, and skb_pp_cow_data() builds frags[] output with skb_add_rx_frag(), which is the representation XDP multi-buffer expects.

References

NVD — CVE-2026-74476 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74476
git.kernel.org/stable/c/04958dba44... WEB
https://git.kernel.org/stable/c/04958dba44dc795dc79ce2fcbc117821bbbd6542
git.kernel.org/stable/c/0be3632597... WEB
https://git.kernel.org/stable/c/0be3632597b8349d43a7dc4244b492dc62a05998
git.kernel.org/stable/c/5c1c15c540... WEB
https://git.kernel.org/stable/c/5c1c15c540fc45820ce3033c319151ec891bc10a
git.kernel.org/stable/c/b24ba0bbff... WEB
https://git.kernel.org/stable/c/b24ba0bbffe3e23eb2f6838881c1fabcb29fb9fb
git.kernel.org/stable/c/d0d6415963... WEB
https://git.kernel.org/stable/c/d0d6415963040c401e7a7e4e482a698ba52448cb
git.kernel.org/stable/c/f9c1fff857... WEB
https://git.kernel.org/stable/c/f9c1fff857e93be709c8b52ed1a643f37bd82c66

Frequently Asked Questions

What is CVE-2026-74476?
CVE-2026-74476 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-2026-74476?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74476?
CVE-2026-74476 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-2026-74476?
CVE-2026-74476 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74476?
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 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-p72r-vmh2-4xj6",
  "modified" : "2026-08-23T15:33:02Z",
  "published" : "2026-08-15T15:30:33Z",
  "aliases" : [ "CVE-2026-74476" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: convert frag_list skbs before running XDP\n\nA frag_list skb can reach veth with data_len set but nr_frags zero.\nveth_convert_skb_to_xdp_buff() only converts skbs that are shared,\nlocked, have frags[], or do not have enough headroom. It later uses\nskb_is_nonlinear() to decide whether to set XDP_FLAGS_HAS_FRAGS and\nxdp_frags_size.\n\nThat exposes frag_list data to XDP as if it were stored in frags[], but\nfrags[] is empty. AF_XDP copy mode can then trust the bogus XDP fragment\nmetadata, walk an empty fragment entry, and crash in memcpy() from\n__xsk_rcv().\n\nRoute non-linear skbs through skb_pp_cow_data() before exposing them to\nXDP, and only advertise XDP frags when the resulting skb has frags[].\nskb_copy_bits() already handles frag_list input, and skb_pp_cow_data()\nbuilds frags[] output with skb_add_rx_frag(), which is the\nrepresentation XDP multi-buffer expects.",
  "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-2026-74476"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/04958dba44dc795dc79ce2fcbc117821bbbd6542"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0be3632597b8349d43a7dc4244b492dc62a05998"
  }, {
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b24ba0bbffe3e23eb2f6838881c1fabcb29fb9fb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d0d6415963040c401e7a7e4e482a698ba52448cb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f9c1fff857e93be709c8b52ed1a643f37bd82c66"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T13:17:52Z"
  }
}