CVE-2026-3269: PSI Probe Denial of Service Vulnerability

LOW
Advisory Identifier: GHSA-rx6w-2w6h-r346
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CVSS 4.3
CWE-404 CWE-285
Published
Advisory Summary

CVE-2026-3269 is a LOW (CVSS 4.3) denial of service vulnerability (CWE-404: Improper Resource Shutdown or Release) affecting PSI Probe libraries in the Maven ecosystem. The issue involves broken access control can lead to dos. Remediation is available in the latest vendor maintenance releases.

CVE-2026-3269 at a Glance

CVE Identifier CVE-2026-3269
GHSA Identifier GHSA-rx6w-2w6h-r346
Severity LOW
CVSS v3.1 Base Score 4.3
CWE Classification CWE-404: Improper Resource Shutdown or Release
Affected Product PSI Probe
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2026-3269

To remediate this vulnerability, upgrade all affected PSI Probe dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

com.github.psi-probe:psi-probe-core fixed: Latest secure release 
<dependency>
    <groupId>com.github.psi-probe</groupId>
    <artifactId>psi-probe-core</artifactId>
    <version>Latest secure release</version>
</dependency>
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 -Dincludes=com.github.psi-probe

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-3269, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.github.psi-probe

Analyze the terminal output to locate any version of PSI Probe 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 -Dincludes=com.github.psi-probe 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-404: Improper Resource Shutdown or Release, where the product does not release or incorrectly releases a resource before it is made available for re-use. In PSI Probe, 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

A flaw has been found in psi-probe PSI Probe up to 5.3.0. The impacted element is the function handleRequestInternal of the file psi-probe-core/src/main/java/psiprobe/controllers/sessions/ExpireSessionsController.java of the component Session Handler. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVE-2026-3269 Affected PSI Probe Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
com.github.psi-probe:psi-probe-core
maven/com.github.psi-probe/psi-probe-core
Maven
≤ 5.3.0

References

NVD — CVE-2026-3269 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3269
PSI Probe Source Repository REPOSITORY
https://github.com/AnalogyC0de/public_exp/issues/13
PSI Probe Source Repository REPOSITORY
https://github.com/psi-probe/psi-probe
vuldb.com/ WEB
https://vuldb.com/?ctiid.347993
vuldb.com/ WEB
https://vuldb.com/?id.347993
vuldb.com/ WEB
https://vuldb.com/?submit.758665

Frequently Asked Questions

What is CVE-2026-3269?
CVE-2026-3269 is a security vulnerability in PSI Probe involving Broken access control can lead to DoS under CWE-404: Improper Resource Shutdown or Release.
Which PSI Probe versions are affected?
Affected versions include releases prior to current release patches across affected packages: com.github.psi-probe:psi-probe-core.
What version fixes CVE-2026-3269?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is psi-probe-core affected?
Yes, com.github.psi-probe:psi-probe-core is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-3269?
CVE-2026-3269 has a CVSS v3.1 base score of 4.3 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-3269?
CVE-2026-3269 is classified under CWE-404: Improper Resource Shutdown or Release (The product does not release or incorrectly releases a resource before it is made available for re-use.).
How can I check Maven dependencies for CVE-2026-3269?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.github.psi-probe'. 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-rx6w-2w6h-r346",
  "modified" : "2026-02-28T02:09:13Z",
  "published" : "2026-02-27T00:31:46Z",
  "aliases" : [ "CVE-2026-3269" ],
  "summary" : "PSI Probe: Broken access control can lead to DoS ",
  "details" : "A flaw has been found in psi-probe PSI Probe up to 5.3.0. The impacted element is the function handleRequestInternal of the file psi-probe-core/src/main/java/psiprobe/controllers/sessions/ExpireSessionsController.java of the component Session Handler. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.github.psi-probe:psi-probe-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "5.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-3269"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/AnalogyC0de/public_exp/issues/13"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/psi-probe/psi-probe"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.347993"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.347993"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?submit.758665"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285", "CWE-404" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-28T02:09:13Z",
    "nvd_published_at" : "2026-02-27T00:16:58Z"
  }
}