# RHSA-2026:93471: perl-YAML security update

RHSA-2026:93471, released November 3, 2026, fixes 2 CVEs in perl-YAML (version 0:1.24-4.module+el8.10.0+25073+d1062575). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-93471
- Platform: Linux
- Released: Nov 3, 2026
- Priority: Urgent (Closes CVE-2017-20285, rated Critical)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:93471

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [perl-YAML](https://patchblox.com/security/data/product/linux/perl-yaml.md) | RHEL 8 | 0:1.24-4.module+el8.10.0+25073+d1062575 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2017-20285](https://patchblox.com/security/data/cve/CVE-2017-20285.md) | Urgent | libyaml-perl: YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes | 9.1 | 0.0034 |  |
| [CVE-2019-25777](https://patchblox.com/security/data/cve/CVE-2019-25777.md) | High | libyaml-perl: YAML versions before 1.27_001 for Perl allow a loaded perl/glob document to replace any package variable, which can l... | 8.1 | 0.0035 |  |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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