CVE-2026-77205: Software Security Vulnerability Vulnerability

LOW
Advisory Identifier: GHSA-7m29-c28j-rg7h
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CVSS 3.7
CWE-772
Published
Advisory Summary

CVE-2026-77205 is a LOW (CVSS 3.7) security vulnerability vulnerability (CWE-772: Missing Release of Resource after Effective Lifetime) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-77205 at a Glance

CVE Identifier CVE-2026-77205
GHSA Identifier GHSA-7m29-c28j-rg7h
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-772: Missing Release of Resource after Effective Lifetime
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
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-2026-77205

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-2026-77205, 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-772: Missing Release of Resource after Effective Lifetime, where the product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed. 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

Libreswan in FIPS mode has a vulnerability where badly formed received certificates are rejected, but not deleted from the NSS cache. As a result, any real certificates with the same serial number are rejected as well. This can be abused to lock out legitimate peers from connecting. The add_decoded_cert() function missed a call to CERT_DestroyCertificate() due to an incorrect fix for CVE-2026-14957. Sending bogus certificates with new serial numbers could prevent the real certificates with those serial numbers from connecting until the service has restarted.

References

NVD — CVE-2026-77205 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77205
Software Security Information SECURITY
https://libreswan.org/security/CVE-2026-14957/CVE-2026-14957.txt
Software Security Information SECURITY
https://libreswan.org/security/CVE-2026-77205
Software Security Information SECURITY
https://libreswan.org/security/CVE-2026-77205/CVE-2026-77205.txt

Frequently Asked Questions

What is CVE-2026-77205?
CVE-2026-77205 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-772: Missing Release of Resource after Effective Lifetime.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-77205?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-77205?
CVE-2026-77205 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-77205?
CVE-2026-77205 is classified under CWE-772: Missing Release of Resource after Effective Lifetime (The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.).
How can I check Maven dependencies for CVE-2026-77205?
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-7m29-c28j-rg7h",
  "modified" : "2026-10-14T00:31:47Z",
  "published" : "2026-10-14T00:31:47Z",
  "aliases" : [ "CVE-2026-77205" ],
  "details" : "Libreswan in FIPS mode has a vulnerability where badly formed received certificates are rejected, but not deleted from the NSS cache. As a result, any real certificates with the same serial number are rejected as well. This can be abused to lock out legitimate peers from connecting. The add_decoded_cert() function missed a call to CERT_DestroyCertificate() due to an incorrect fix for CVE-2026-14957. Sending bogus certificates with new serial numbers could prevent the real certificates with those serial numbers from connecting until the service has restarted.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-77205"
  }, {
    "type" : "WEB",
    "url" : "https://libreswan.org/security/CVE-2026-14957/CVE-2026-14957.txt"
  }, {
    "type" : "WEB",
    "url" : "https://libreswan.org/security/CVE-2026-77205"
  }, {
    "type" : "WEB",
    "url" : "https://libreswan.org/security/CVE-2026-77205/CVE-2026-77205.txt"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-772" ],
    "severity" : "LOW",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-13T22:18:24Z"
  }
}