CVE-2026-80544: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-m8xm-pgrj-whrp
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CVSS 7.8
Published
Advisory Summary

CVE-2026-80544 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80544 at a Glance

CVE Identifier CVE-2026-80544
GHSA Identifier GHSA-m8xm-pgrj-whrp
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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:H/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 High (I:H)
Availability High (A:H)

How to Fix CVE-2026-80544

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-2026-80544, 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: s390/zcrypt: Improve EP11 CPRB domain handling with ASN.1 parsing The zcrypt_msgtype6_send_ep11_cprb() function uses fragile struct overlays to access and modify the domain field in the EP11 CPRB payload, creating maintainability and security concerns: 1. Struct overlay approach (pld_hdr) assumes fixed payload structure and doesn't validate the actual ASN.1 encoding. 2. Complex length format detection logic is error-prone and doesn't properly validate bounds at each parsing step. 3. Direct struct member access bypasses proper ASN.1 validation. Fix by replacing struct overlays with explicit ASN.1 parsing that validates each field (payload tag/length, function tag/length/value, optional domain tag/length/value) with proper bounds checking at every step. Add asn1_int_encode() helper function to safely write integer values with correct endianness conversion. This makes the code consistent with the validation pattern introduced with the rework of the xcrb_msg_to_type6_ep11cprb_msgx() function.

References

NVD — CVE-2026-80544 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80544
git.kernel.org/stable/c/00a44ff06b... WEB
https://git.kernel.org/stable/c/00a44ff06bcffb68b9cd7e90d2259b7d14b82b18
git.kernel.org/stable/c/0864a16378... WEB
https://git.kernel.org/stable/c/0864a163783bff109b548266921829ea794edc93
git.kernel.org/stable/c/db21b2cf6d... WEB
https://git.kernel.org/stable/c/db21b2cf6dd0af5ffd08931e0a9fcda5a0473220

Frequently Asked Questions

What is CVE-2026-80544?
CVE-2026-80544 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-2026-80544?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80544?
CVE-2026-80544 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-80544?
CVE-2026-80544 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80544?
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-m8xm-pgrj-whrp",
  "modified" : "2026-10-15T12:30:45Z",
  "published" : "2026-08-27T06:31:31Z",
  "aliases" : [ "CVE-2026-80544" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Improve EP11 CPRB domain handling with ASN.1 parsing\n\nThe zcrypt_msgtype6_send_ep11_cprb() function uses fragile struct\noverlays to access and modify the domain field in the EP11 CPRB\npayload, creating maintainability and security concerns:\n1. Struct overlay approach (pld_hdr) assumes fixed payload structure\n   and doesn't validate the actual ASN.1 encoding.\n2. Complex length format detection logic is error-prone and doesn't\n   properly validate bounds at each parsing step.\n3. Direct struct member access bypasses proper ASN.1 validation.\n\nFix by replacing struct overlays with explicit ASN.1 parsing that\nvalidates each field (payload tag/length, function tag/length/value,\noptional domain tag/length/value) with proper bounds checking at every\nstep. Add asn1_int_encode() helper function to safely write integer\nvalues with correct endianness conversion. This makes the code\nconsistent with the validation pattern introduced with the rework of\nthe xcrb_msg_to_type6_ep11cprb_msgx() function.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80544"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/00a44ff06bcffb68b9cd7e90d2259b7d14b82b18"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0864a163783bff109b548266921829ea794edc93"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/db21b2cf6dd0af5ffd08931e0a9fcda5a0473220"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-26T15:17:08Z"
  }
}