CVE-2026-72888

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Source
https://cve.org/CVERecord?id=CVE-2026-72888
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72888.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72888
Aliases
  • GHSA-m2cv-cq5x-47ph
Downstream
Related
Published
2026-08-16T13:50:35Z
Modified
2026-08-28T11:30:41Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Net::OAuth versions before 0.32 for Perl allow memory exhaustion via unbounded caching of failed module loads in smart_require
Details

Net::OAuth versions before 0.32 for Perl allow memory exhaustion via unbounded caching of failed module loads in smart_require.

smart_require stores results in a process-global hash with no bound and no eviction, and keeps an entry for every class name it is asked about, including names that failed to load, because the return value of the failed eval is stored before the error is checked. The key comes off the wire on the server side: _signature_method_class builds the class name from the signature_method parameter of the incoming message, and verify resolves it before any signature is checked.

A remote client chooses both how many entries are created and how long each key is. In a persistent server the hash grows for the life of the worker process until it exhausts memory. Header size limits bound the key length on the Authorization header path, but not on a POST body.

Database specific 
{
    "cna_assigner": "CPANSec",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72888.json"
}
References

Affected packages

Git / github.com/vurtdev/net-oauth

Affected ranges

Type
GIT
Repo
https://github.com/vurtdev/net-oauth
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d41b28dbf8a15512685974aa9af03fe4bfb611ea
Fixed
ee713fc96263c70b3b9a5280612618b474576f8f
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.32"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.29
v0.30
v0.31

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72888.json"