- Issued:
- 2026-11-02
- Updated:
- 2026-11-02
RHSA-2026:93471 - Security Advisory
Synopsis
Important: perl-YAML:1.24 security update
Type/Severity
Security Advisory: Important
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for the perl-YAML:1.24 module is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
he perl-YAML package provides the pure-Perl implementation of the YAML (YAML Ain't Markup Language) data serialization standard. It allows developers to serialize Perl data structures into formatted YAML text and deserialize YAML data back into native Perl structures, making it widely used for configuration files, data exchange, and human-readable data storage in Perl applications.
Security Fix(es):
- perl-yaml: perl-yaml: Arbitrary code execution via unrestricted package variable assignment (CVE-2019-25777)
- perl-yaml: perl-yaml: Arbitrary destructor method execution via crafted YAML document (CVE-2017-20285)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
Affected Products
- Red Hat Enterprise Linux for x86_64 8 x86_64
- Red Hat Enterprise Linux for IBM z Systems 8 s390x
- Red Hat Enterprise Linux for Power, little endian 8 ppc64le
- Red Hat Enterprise Linux for ARM 64 8 aarch64
- Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64
- Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64
- Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le
- Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x
Fixes
- BZ - 2545818 - CVE-2019-25777 perl-yaml: perl-yaml: Arbitrary code execution via unrestricted package variable assignment
- BZ - 2545820 - CVE-2017-20285 perl-yaml: perl-yaml: Arbitrary destructor method execution via crafted YAML document
Note:
More recent versions of these packages may be available.
Click a package name for more details.
Red Hat Enterprise Linux for x86_64 8
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| x86_64 | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
Red Hat Enterprise Linux for IBM z Systems 8
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| s390x | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
Red Hat Enterprise Linux for Power, little endian 8
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| ppc64le | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
Red Hat Enterprise Linux for ARM 64 8
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| aarch64 | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| x86_64 | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| aarch64 | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| ppc64le | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.src.rpm | SHA-256: ae756bb2e5838b0c56fbc4376c93f1a4e2a38033126f59f53b30ac939cded679 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.src.rpm | SHA-256: bc3c9e23293899105be3a76a031616b4fe9555739338ecf9747deb524677d66a |
| s390x | |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+d1062575.noarch.rpm | SHA-256: 3ab4438141139cebebdcb44a29ce34276e297073e11bc007206038f25ebf2237 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
| perl-YAML-1.24-4.module+el8.10.0+25073+42d87e53.noarch.rpm | SHA-256: d229bd249450da214c2937916b53594acf59ed5a6afac7945ad8917a00191711 |
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