CVE-2026-110759: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-v3f5-7p3g-9fm4
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CWE-1286
Published
Advisory Summary

CVE-2026-110759 is a security vulnerability vulnerability (CWE-1286: Improper Validation of Syntactic Correctness of Input) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-110759 at a Glance

CVE Identifier CVE-2026-110759
GHSA Identifier GHSA-v3f5-7p3g-9fm4
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification CWE-1286: Improper Validation of Syntactic Correctness of Input
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-110759

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-2026-110759, 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-1286: Improper Validation of Syntactic Correctness of Input, where the product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax. 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

Text::CSV_XS versions before 1.65 for Perl return a 0xFF byte that is not in the input for an empty last field followed by a lone CR in parse. When the input to parse ends in a separator and a lone CR, the parser treats the end of the input as the next character and stores the end-of-file marker in the field as the byte 0xFF. With binary set, parse("a,\r") returns the fields "a" and "\xFF". On UTF-8 flagged input the last field is a UTF-8 flagged string holding that lone byte, which is malformed UTF-8. The same input with a non-empty last field is rejected as an error. A CRLF file read line by line and chomped ends this way when its last column is empty, so the application receives a byte that is not in its input.

References

NVD — CVE-2026-110759 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110759
Security Fix Commit FIX COMMIT
https://github.com/cpan-authors/Text-CSV_XS/commit/7627f1a2bb8ffe4e81d9847318a060822043f7f3.patch
metacpan.org/release/hmbrand/tex... WEB
https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes

Frequently Asked Questions

What is CVE-2026-110759?
CVE-2026-110759 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-1286: Improper Validation of Syntactic Correctness of Input.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-110759?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-110759?
CVE-2026-110759 is classified under CWE-1286: Improper Validation of Syntactic Correctness of Input (The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax.).
How can I check Maven dependencies for CVE-2026-110759?
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-v3f5-7p3g-9fm4",
  "modified" : "2026-10-17T00:31:19Z",
  "published" : "2026-10-17T00:31:19Z",
  "aliases" : [ "CVE-2026-110759" ],
  "details" : "Text::CSV_XS versions before 1.65 for Perl return a 0xFF byte that is not in the input for an empty last field followed by a lone CR in parse.\n\nWhen the input to parse ends in a separator and a lone CR, the parser treats the end of the input as the next character and stores the end-of-file marker in the field as the byte 0xFF. With binary set, parse(\"a,\\r\") returns the fields \"a\" and \"\\xFF\". On UTF-8 flagged input the last field is a UTF-8 flagged string holding that lone byte, which is malformed UTF-8. The same input with a non-empty last field is rejected as an error.\n\nA CRLF file read line by line and chomped ends this way when its last column is empty, so the application receives a byte that is not in its input.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-110759"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cpan-authors/Text-CSV_XS/commit/7627f1a2bb8ffe4e81d9847318a060822043f7f3.patch"
  }, {
    "type" : "WEB",
    "url" : "https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1286" ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-16T23:17:01Z"
  }
}