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CVE-2026-87078 Net::IDN::Punycode versions from 2.302 before 2.590 for Perl leak the output buffer on every rejected label in decode_punycode

🗓️ 22 Sep 2026 07:19:33Reported by CPANSecType 
cvelist
 cvelist
🔗 www.cve.org👁 38 Views

Net::IDN::Punycode 2.302 before 2.590 memory leak in decode_punycode XS backend enables DoS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus
Amazon Linux 2023 : perl-Net-IDN-Encode (ALAS2023-2026-3190)
12 Oct 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-87078
22 Sep 202600:00
–nessus
amazon
Amazon
Important: perl-Net-IDN-Encode
12 Oct 202600:00
–amazon
circl
Circl
CVE-2026-87078
22 Sep 202612:50
–circl
cve
CVE
CVE-2026-87078
22 Sep 202607:19
–cve
debiancve
Debian CVE
CVE-2026-87078
22 Sep 202607:19
–debiancve
euvd
EUVD
EUVD-2026-84291
22 Sep 202607:19
–euvd
mend
Mend
CVE-2026-87078
22 Sep 202607:19
–mend
nvd
NVD
CVE-2026-87078
22 Sep 202608:16
–nvd
osv
OSV
DEBIAN-CVE-2026-87078
22 Sep 202608:16
–osv
Rows per page
[
  {
    "collectionURL": "https://cpan.org/modules",
    "defaultStatus": "unaffected",
    "modules": [
      "Net::IDN::Punycode"
    ],
    "packageName": "Net-IDN-Encode",
    "packageURL": "pkg:cpan/Net-IDN-Encode",
    "programFiles": [
      "lib/Net/IDN/Punycode.xs"
    ],
    "programRoutines": [
      {
        "name": "Net::IDN::Punycode::decode_punycode"
      }
    ],
    "repo": "https://github.com/robrwo/Net-IDN-Encode",
    "versions": [
      {
        "lessThan": "2.590",
        "status": "affected",
        "version": "2.302",
        "versionType": "custom"
      }
    ]
  }
]

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22 Sep 2026 07:19Current
CVSS 3.19.1
EPSS0.00394
SSVC
38