# ALAS2023-2026-3190: Security update for 3 packages

ALAS2023-2026-3190, released November 7, 2026, fixes 7 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/alas2023-2026-3190
- Platform: Linux
- Released: Nov 7, 2026
- Priority: Urgent (Closes CVE-2026-87080, rated Critical)
- CVEs: 7, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://alas.aws.amazon.com/AL2023/ALAS-2026-3190.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [perl-Net-IDN-Encode](https://patchblox.com/security/data/product/linux/perl-net-idn-encode.md) | amzn 2023 | 2.590-1.amzn2023.0.1 |
| [perl-Net-IDN-Encode-debuginfo](https://patchblox.com/security/data/product/linux/perl-net-idn-encode-debuginfo.md) | amzn 2023 | 2.590-1.amzn2023.0.1 |
| [perl-Net-IDN-Encode-debugsource](https://patchblox.com/security/data/product/linux/perl-net-idn-encode-debugsource.md) | amzn 2023 | 2.590-1.amzn2023.0.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-87078](https://patchblox.com/security/data/cve/CVE-2026-87078.md) | Urgent | libnet-idn-encode-perl: Net::IDN::Punycode versions from 2.302 before 2.590 for Perl leak the output buffer on every rejected label in decode... | 9.1 | 0.0039 |  |
| [CVE-2026-87080](https://patchblox.com/security/data/cve/CVE-2026-87080.md) | Urgent | libnet-idn-encode-perl: Net::IDN::Punycode::PP versions before 2.590 for Perl decode a truncated label to a name containing a character it ne... | 9.1 | 0.0039 |  |
| [CVE-2026-87082](https://patchblox.com/security/data/cve/CVE-2026-87082.md) | High | libnet-idn-encode-perl: Net::IDN::Punycode versions before 2.590 for Perl hang, crash or return a wrong label via unvalidated malformed UTF-8... | 7.5 | 0.0042 |  |
| [CVE-2026-87079](https://patchblox.com/security/data/cve/CVE-2026-87079.md) | High | libnet-idn-encode-perl: Net::IDN::Punycode versions before 2.590 for Perl allow CPU exhaustion via quadratic insertion cost when decoding a l... | 7.5 | 0.0038 |  |
| [CVE-2026-87081](https://patchblox.com/security/data/cve/CVE-2026-87081.md) | High | libnet-idn-encode-perl: Net::IDN::UTS46 versions before 2.590 for Perl allow CPU exhaustion via quadratic punycode encoding of an overlong la... | 7.5 | 0.0038 |  |
| [CVE-2026-74766](https://patchblox.com/security/data/cve/CVE-2026-74766.md) | High | libnet-idn-encode-perl: Net::IDN::Punycode versions from 2.301 before 2.590 for Perl allow a heap use-after-free via a decoded code point tha... | 8.4 | 0.0014 |  |
| [CVE-2026-74765](https://patchblox.com/security/data/cve/CVE-2026-74765.md) | Routine | libnet-idn-encode-perl: Net::IDN::Punycode versions before 2.590 for Perl allow an out-of-bounds read via integer overflow of the delta accum... | 6.5 | 0.0033 |  |

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Data as of 2026-11-10T07:50:38Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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