CVE-2026-80490: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-pfmw-49c5-8vv3
Share
CWE-125
Published
Advisory Summary

CVE-2026-80490 is a security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80490 at a Glance

CVE Identifier CVE-2026-80490
GHSA Identifier GHSA-pfmw-49c5-8vv3
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-80490

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-2026-80490, 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-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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

Algorithm::AhoCorasick::XS versions through 0.04 for Perl read the haystack string length before the scalar is stringified. The matches, first_match and match_details methods use the T_STD_STRING typemap to translate Perl scalars (SVs) into strings via the std::string constructor, using the SvPV macro to stringify the haystack input, and the SvCUR macro to determine the length of the SV. When the input SVs are references, integers (IVs) or floats (NVs), the SvCUR macro will return an invalid length if it is run before the input is stringified, leading to an out-of-bounds read which can abort the process. Note that the evaluation order of arguments to std::string is unspecified. Depending on the compiler, SvCUR may be run first and lead to an abort that cannot be caught within Perl. This can be triggered when the haystack is a numeric value, for example, my $ac = Algorithm::AhoCorasick::XS->new( [ "11", "22" ] ); $ac->matches( 211 ); This can occur when the haystack is the result of reading data from decoded JSON or a numeric database column. It can also be triggered when using a blessed object as a haystack.

References

NVD — CVE-2026-80490 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80490
Software Source Repository REPOSITORY
https://github.com/richardjharris/Algorithm-AhoCorasick-XS/pull/1
metacpan.org/release/rjh/algorit... WEB
https://metacpan.org/release/RJH/Algorithm-AhoCorasick-XS-0.04/source/typemap#L14
rt.cpan.org/ticket/display.html WEB
https://rt.cpan.org/Ticket/Display.html?id=181560
Software Security Information SECURITY
https://security.metacpan.org/patches/A/Algorithm-AhoCorasick-XS/0.04/CVE-2026-80490-r1.patch
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/09/30/15

Frequently Asked Questions

What is CVE-2026-80490?
CVE-2026-80490 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-80490?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80490?
CVE-2026-80490 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-80490?
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-pfmw-49c5-8vv3",
  "modified" : "2026-09-30T18:33:49Z",
  "published" : "2026-09-30T18:33:49Z",
  "aliases" : [ "CVE-2026-80490" ],
  "details" : "Algorithm::AhoCorasick::XS versions through 0.04 for Perl read the haystack string length before the scalar is stringified.\n\nThe matches, first_match and match_details methods use the T_STD_STRING typemap to translate Perl scalars (SVs) into strings via the std::string constructor, using the SvPV macro to stringify the haystack input, and the SvCUR macro to determine the length of the SV.\n\nWhen the input SVs are references, integers (IVs) or floats (NVs), the SvCUR macro will return an invalid length if it is run before the input is stringified, leading to an out-of-bounds read which can abort the process.\n\nNote that the evaluation order of arguments to std::string is unspecified. Depending on the compiler, SvCUR may be run first and lead to an abort that cannot be caught within Perl.\n\nThis can be triggered when the haystack is a numeric value, for example,\n\n    my $ac = Algorithm::AhoCorasick::XS->new( [ \"11\", \"22\" ] );\n    $ac->matches( 211 );\n\nThis can occur when the haystack is the result of reading data from decoded JSON or a numeric database column. It can also be triggered when using a blessed object as a haystack.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80490"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/richardjharris/Algorithm-AhoCorasick-XS/pull/1"
  }, {
    "type" : "WEB",
    "url" : "https://metacpan.org/release/RJH/Algorithm-AhoCorasick-XS-0.04/source/typemap#L14"
  }, {
    "type" : "WEB",
    "url" : "https://rt.cpan.org/Ticket/Display.html?id=181560"
  }, {
    "type" : "WEB",
    "url" : "https://security.metacpan.org/patches/A/Algorithm-AhoCorasick-XS/0.04/CVE-2026-80490-r1.patch"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/09/30/15"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-30T16:19:10Z"
  }
}