CVE-2026-35189: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-3r46-fh9h-qv77
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CVSS 5.3
CWE-770
Published
Advisory Summary

CVE-2026-35189 is a MODERATE (CVSS 5.3) security vulnerability vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-35189 at a Glance

CVE Identifier CVE-2026-35189
GHSA Identifier GHSA-3r46-fh9h-qv77
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
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-2026-35189

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-2026-35189, 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-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. 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

Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possible Denial of Service in clients or in servers that solicit client certificates. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: A certificate or a set of certificates that fits under the limit for size of certificates accepted from the peer (~100 KiB) can result in allocation of several hundred MiB of resident memory on the receiving side during a normal TLS handshake. This may be enough to crash the client or server, if multiple concurrent connections lead to similarly large memory allocations. The fix postpones processing of the CRL distribution points extensions in certificates to the time when the processed value is required for CRL processing. This avoids keeping large memory allocations for a long time when such certificates are received. FIPS impact: no The affected code is outside the FIPS module boundary.

References

NVD — CVE-2026-35189 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35189
Security Fix Commit FIX COMMIT
https://github.com/openssl/openssl/commit/2b93c73b2c70ddc4c61c5e4bfaaa6bd71379eb84
Security Fix Commit FIX COMMIT
https://github.com/openssl/openssl/commit/3842516cc15e8b2cf55747011045e77547e71d89
Security Fix Commit FIX COMMIT
https://github.com/openssl/openssl/commit/8e0efc7549b7ff8246d40e585e3fd604f728473f
Security Fix Commit FIX COMMIT
https://github.com/openssl/openssl/commit/c72ae182cac17a82e4246c6ecd4e9c4ec3586ec9
openssl-library.org/news/secadv/2026092... WEB
https://openssl-library.org/news/secadv/20260929.txt

Frequently Asked Questions

What is CVE-2026-35189?
CVE-2026-35189 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-770: Allocation of Resources Without Limits or Throttling.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-35189?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-35189?
CVE-2026-35189 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-35189?
CVE-2026-35189 is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check Maven dependencies for CVE-2026-35189?
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-3r46-fh9h-qv77",
  "modified" : "2026-09-30T21:31:58Z",
  "published" : "2026-09-29T18:31:44Z",
  "aliases" : [ "CVE-2026-35189" ],
  "details" : "Issue summary: A certificate with many nameRelativeToCRLIssuer CRL\ndistribution points causes disproportionate heap growth when OpenSSL caches\nX.509 extensions.\n\nImpact summary: Receiving a crafted certificate from a malicious peer can lead\nto significant memory pressure and possible Denial of Service in clients or\nin servers that solicit client certificates.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: A certificate or a set of certificates that fits under the limit for\nsize of certificates accepted from the peer (~100 KiB) can result in allocation\nof several hundred MiB of resident memory on the receiving side\nduring a normal TLS handshake.  This may be enough to crash the client or\nserver, if multiple concurrent connections lead to similarly large memory\nallocations.\n\nThe fix postpones processing of the CRL distribution points extensions in\ncertificates to the time when the processed value is required for CRL processing.\nThis avoids keeping large memory allocations for a long time when such\ncertificates are received.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35189"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openssl/openssl/commit/2b93c73b2c70ddc4c61c5e4bfaaa6bd71379eb84"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openssl/openssl/commit/3842516cc15e8b2cf55747011045e77547e71d89"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openssl/openssl/commit/8e0efc7549b7ff8246d40e585e3fd604f728473f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openssl/openssl/commit/c72ae182cac17a82e4246c6ecd4e9c4ec3586ec9"
  }, {
    "type" : "WEB",
    "url" : "https://openssl-library.org/news/secadv/20260929.txt"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-29T16:17:07Z"
  }
}