CVE-2026-74665: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-2vgp-f9r9-4w6f
Share
CVSS 9.1
Published
Advisory Summary

CVE-2026-74665 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-2026-74665 at a Glance

CVE Identifier CVE-2026-74665
GHSA Identifier GHSA-2vgp-f9r9-4w6f
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: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-2026-74665

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-2026-74665, 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: net: fix skb length accounting after generic XDP frag adjustment Generic XDP exposes non-linear skb fragments through an xdp_buff. If an XDP program adjusts the fragment area, bpf_prog_run_generic_xdp() copies xdp_frags_size back to skb->data_len but leaves skb->len containing the old fragment contribution. After a fragment shrink, this makes skb_headlen() larger than the actual linear area. In the reproduced UDP receive path, __skb_datagram_iter() copied 1024 bytes past the actual linear tail to userspace, starting at struct skb_shared_info. The copied bytes included the affected skb's nr_frags, xdp_frags_size and a kernel pointer from skb_shinfo(skb)->frags[0]. Real packet data was displaced by the same amount and truncated at the end. Subtract the old data_len before replacing it and add the new data_len afterwards, keeping skb->len and skb->data_len synchronized. A 60000-byte UDP datagram on a veth pair with MTU 64000 was shortened by 1024 bytes from its fragment area. Before the fix, all 10 runs produced corrupted payloads. After the fix, all 10 runs matched the expected payload exactly.

References

NVD — CVE-2026-74665 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74665
git.kernel.org/stable/c/33f2b2eb33... WEB
https://git.kernel.org/stable/c/33f2b2eb33d666ecac68031e0f31424fb70528db
git.kernel.org/stable/c/5f30f9c302... WEB
https://git.kernel.org/stable/c/5f30f9c302cea1f2ebf97abe574c1826544223d7
git.kernel.org/stable/c/72468efcc0... WEB
https://git.kernel.org/stable/c/72468efcc089782fa047afddd10856b11a14ef5b
git.kernel.org/stable/c/ea1ccd6d1c... WEB
https://git.kernel.org/stable/c/ea1ccd6d1c6370868e3b032a3fc575b9c397f2e1

Frequently Asked Questions

What is CVE-2026-74665?
CVE-2026-74665 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-2026-74665?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74665?
CVE-2026-74665 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-2026-74665?
CVE-2026-74665 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74665?
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-2vgp-f9r9-4w6f",
  "modified" : "2026-08-25T06:31:26Z",
  "published" : "2026-08-22T18:30:28Z",
  "aliases" : [ "CVE-2026-74665" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix skb length accounting after generic XDP frag adjustment\n\nGeneric XDP exposes non-linear skb fragments through an xdp_buff. If an\nXDP program adjusts the fragment area, bpf_prog_run_generic_xdp() copies\nxdp_frags_size back to skb->data_len but leaves skb->len containing the\nold fragment contribution.\n\nAfter a fragment shrink, this makes skb_headlen() larger than the actual\nlinear area. In the reproduced UDP receive path, __skb_datagram_iter()\ncopied 1024 bytes past the actual linear tail to userspace, starting at\nstruct skb_shared_info. The copied bytes included the affected skb's\nnr_frags, xdp_frags_size and a kernel pointer from\nskb_shinfo(skb)->frags[0]. Real packet data was displaced by the same\namount and truncated at the end.\n\nSubtract the old data_len before replacing it and add the new data_len\nafterwards, keeping skb->len and skb->data_len synchronized.\n\nA 60000-byte UDP datagram on a veth pair with MTU 64000 was shortened by\n1024 bytes from its fragment area. Before the fix, all 10 runs produced\ncorrupted payloads. After the fix, all 10 runs matched the expected\npayload exactly.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74665"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/33f2b2eb33d666ecac68031e0f31424fb70528db"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5f30f9c302cea1f2ebf97abe574c1826544223d7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/72468efcc089782fa047afddd10856b11a14ef5b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ea1ccd6d1c6370868e3b032a3fc575b9c397f2e1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-22T16:16:40Z"
  }
}