CVE-2026-72019: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-593p-5684-69pq
Share
CVSS 7.3
CWE-125
Published
Advisory Summary

CVE-2026-72019 is a HIGH (CVSS 7.3) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72019 at a Glance

CVE Identifier CVE-2026-72019
GHSA Identifier GHSA-593p-5684-69pq
Severity HIGH
CVSS v3.1 Base Score 7.3
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.3

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:H/I:L/A:H).

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 High (C:H)
Integrity Low (I:L)
Availability High (A:H)

How to Fix CVE-2026-72019

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-2026-72019, 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-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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: macsec: don't read an unset MAC header in macsec_encrypt() macsec_encrypt() reads the Ethernet header via eth_hdr(skb) (skb->head + skb->mac_header) to memmove() the 12 source/destination MAC bytes forward and make room for the SecTAG. On the AF_PACKET SOCK_RAW + PACKET_QDISC_BYPASS transmit path the skb reaches the macsec ndo_start_xmit() with the MAC header unset, so eth_hdr(skb) resolves to skb->head + (u16)~0 and the read is out of bounds: a 12-byte heap over-read that is also emitted on the wire as the frame's outer source/destination MAC. KASAN reports a slab-out-of-bounds read in macsec_start_xmit() on 6.0; on current mainline a CONFIG_DEBUG_NET build flags it as an unset mac header in skb_mac_header(). On the TX path the L2 header is at skb->data, so use skb_eth_hdr(), added by commit 96cc4b69581d ("macvlan: do not assume mac_header is set in macvlan_broadcast()") for exactly this purpose.

References

NVD — CVE-2026-72019 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72019
git.kernel.org/stable/c/2cf10d0425... WEB
https://git.kernel.org/stable/c/2cf10d042562283ff4ae97c02d0993d4f1b5ea29
git.kernel.org/stable/c/3adea1b1c0... WEB
https://git.kernel.org/stable/c/3adea1b1c04b57e08a5c12a1f42483760581ce61
git.kernel.org/stable/c/b6cec6187b... WEB
https://git.kernel.org/stable/c/b6cec6187b8632423cd99a94fd5e5ba165fa2a33
git.kernel.org/stable/c/c39087ad0b... WEB
https://git.kernel.org/stable/c/c39087ad0b97fc11a3b058dfc8db9fd370762cb9
git.kernel.org/stable/c/dc9ffa1905... WEB
https://git.kernel.org/stable/c/dc9ffa1905e72f026d080880a2e4cfc42aa91000
git.kernel.org/stable/c/e17a421998... WEB
https://git.kernel.org/stable/c/e17a42199824973cd8212e95b21ffadf4114a21b
git.kernel.org/stable/c/f21fa533a3... WEB
https://git.kernel.org/stable/c/f21fa533a3ed15ada74106aac4b9ddd078fc6b7a
git.kernel.org/stable/c/f5089008f9... WEB
https://git.kernel.org/stable/c/f5089008f90c0a7c5520dff3934e0af00adf322d

Frequently Asked Questions

What is CVE-2026-72019?
CVE-2026-72019 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-72019?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72019?
CVE-2026-72019 has a CVSS v3.1 base score of 7.3 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H.
What CWE is associated with CVE-2026-72019?
CVE-2026-72019 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-72019?
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-593p-5684-69pq",
  "modified" : "2026-08-19T18:32:27Z",
  "published" : "2026-08-15T06:32:09Z",
  "aliases" : [ "CVE-2026-72019" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nmacsec: don't read an unset MAC header in macsec_encrypt()\n\nmacsec_encrypt() reads the Ethernet header via eth_hdr(skb)\n(skb->head + skb->mac_header) to memmove() the 12 source/destination MAC\nbytes forward and make room for the SecTAG.\n\nOn the AF_PACKET SOCK_RAW + PACKET_QDISC_BYPASS transmit path the skb\nreaches the macsec ndo_start_xmit() with the MAC header unset, so\neth_hdr(skb) resolves to skb->head + (u16)~0 and the read is out of\nbounds: a 12-byte heap over-read that is also emitted on the wire as the\nframe's outer source/destination MAC. KASAN reports a slab-out-of-bounds\nread in macsec_start_xmit() on 6.0; on current mainline a CONFIG_DEBUG_NET\nbuild flags it as an unset mac header in skb_mac_header().\n\nOn the TX path the L2 header is at skb->data, so use skb_eth_hdr(), added\nby commit 96cc4b69581d (\"macvlan: do not assume mac_header is set in\nmacvlan_broadcast()\") for exactly this purpose.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72019"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2cf10d042562283ff4ae97c02d0993d4f1b5ea29"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3adea1b1c04b57e08a5c12a1f42483760581ce61"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b6cec6187b8632423cd99a94fd5e5ba165fa2a33"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c39087ad0b97fc11a3b058dfc8db9fd370762cb9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dc9ffa1905e72f026d080880a2e4cfc42aa91000"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e17a42199824973cd8212e95b21ffadf4114a21b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f21fa533a3ed15ada74106aac4b9ddd078fc6b7a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f5089008f90c0a7c5520dff3934e0af00adf322d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:00Z"
  }
}