CVE-2026-75135: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-9258-5wrj-fw57
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CVSS 6.1
CWE-316
Published
Advisory Summary

CVE-2026-75135 is a MODERATE (CVSS 6.1) security vulnerability vulnerability (CWE-316: Cleartext Storage of Sensitive Information in Memory) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product stores sensitive information in cleartext in memory.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-75135 at a Glance

CVE Identifier CVE-2026-75135
GHSA Identifier GHSA-9258-5wrj-fw57
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-316: Cleartext Storage of Sensitive Information in Memory
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.1

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:N).

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 None (A:N)

How to Fix CVE-2026-75135

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-2026-75135, 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-316: Cleartext Storage of Sensitive Information in Memory, where the product stores sensitive information in cleartext in memory. 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

UpSignOn for Windows before 7.19.0 contains a sensitive data exposure vulnerability that allows local attackers to recover the master password and decrypt vault contents by reading a retained backup key from the process memory of UpSignOn.exe, even after the vault has been re-locked. Attackers can extract the backup key from process memory to decrypt the encrypted master password backup stored in v6-vault1.DATA.txt, then use the recovered master password to decrypt the main vault and export all password manager entries in cleartext.

References

NVD — CVE-2026-75135 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-75135
upsignon.eu/en/resources/releas... WEB
https://upsignon.eu/en/resources/release-notes/app#7.19.0
www.vulncheck.com/advisories/upsignon... WEB
https://www.vulncheck.com/advisories/upsignon-sensitive-key-retention-in-memory

Frequently Asked Questions

What is CVE-2026-75135?
CVE-2026-75135 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-316: Cleartext Storage of Sensitive Information in Memory.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-75135?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-75135?
CVE-2026-75135 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with CVE-2026-75135?
CVE-2026-75135 is classified under CWE-316: Cleartext Storage of Sensitive Information in Memory (The product stores sensitive information in cleartext in memory.).
How can I check Maven dependencies for CVE-2026-75135?
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-9258-5wrj-fw57",
  "modified" : "2026-09-02T21:32:08Z",
  "published" : "2026-09-02T21:32:08Z",
  "aliases" : [ "CVE-2026-75135" ],
  "details" : "UpSignOn for Windows before 7.19.0 contains a sensitive data exposure vulnerability that allows local attackers to recover the master password and decrypt vault contents by reading a retained backup key from the process memory of UpSignOn.exe, even after the vault has been re-locked. Attackers can extract the backup key from process memory to decrypt the encrypted master password backup stored in v6-vault1.DATA.txt, then use the recovered master password to decrypt the main vault and export all password manager entries in cleartext.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-75135"
  }, {
    "type" : "WEB",
    "url" : "https://upsignon.eu/en/resources/release-notes/app#7.19.0"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/upsignon-sensitive-key-retention-in-memory"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-316" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-02T20:17:36Z"
  }
}