Description
Parsing malicious or large YAML documents can consume excessive amounts of CPU or memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| gopkg.in/yaml.v2 | gopkg.in/yaml.v2 | < 2.2.4 | 2.2.4 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | golang-yaml.v2 | 2.2.8-1 | — |
| Debian 13 | golang-yaml.v2 | 2.2.8-1 | — |
| Debian 12 | golang-yaml.v2 | 2.2.8-1 | — |
| Debian 10 | golang-yaml.v2 | 2.2.2-1+deb10u1 | DLA-3479-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | webhook +1 | No fix yet | — |
| Ubuntu 26.04 LTS | webhook +2 | No fix yet | — |
| Ubuntu 25.10 | webhook +2 | No fix yet | — |
| Ubuntu 24.04 LTS | webhook +1 | No fix yet | — |
| Ubuntu 22.04 LTS | webhook +1 | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | golang-yaml.v2 | 2.2.2-1ubuntu0.1 | USN-6287-1 |
| Ubuntu 20.04 LTS | webhook +1 | No fix yet | — |
| Ubuntu 18.04 LTS | webhook | No fix yet | — |
| Ubuntu Pro 24.04 LTS | singularity-container | No fix yet | — |
| Ubuntu Pro 18.04 LTS | golang-yaml.v2 | 0.0+git20170407.0.cd8b52f-1ubuntu2+esm1 | USN-6287-1 |
| Ubuntu Pro 18.04 LTS | singularity-container | No fix yet | — |
| Ubuntu Pro 16.04 LTS | golang-yaml.v2 | 0.0+git20160301.0.a83829b-1ubuntu0.1~esm1 | USN-6287-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | rhc +1 | 1:0.2.5-1.el9_5 | RHSA-2024:10759 |
| RHEL 9 | toolbox +1 | 0.0.99.4-6.el9_3 | RHSA-2023:6346 |
| RHEL 8 | buildah +1 | 1:1.24.6-7.module+el8.9.0+19784+443be299 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | cockpit-podman | 46-1.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | conmon | 2:2.1.4-2.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | container-selinux | 2:2.205.0-3.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | containernetworking-plugins | 1:1.1.1-5.module+el8.9.0+19784+443be299 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | containers-common | 2:1-38.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | crit +4 | 3.15-3.module+el8.9.0+19243+df4d9ff2 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | crun | 1.8.3-1.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | fuse-overlayfs | 1.9-2.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | libslirp +1 | 4.4.0-1.module+el8.9.0+19243+df4d9ff2 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | netavark +1 | 2:1.0.1-38.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | oci-seccomp-bpf-hook | 1.2.5-2.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | podman +6 | 2:4.0.2-24.module+el8.9.0+19784+443be299 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | python-podman +1 | 4.0.0-2.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | rhc | 1:0.2.5-1.el8_10 | RHSA-2024:10784 |
| RHEL 8 | runc | 1:1.1.5-2.module+el8.9.0+19104+fcef53a3 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | skopeo +1 | 2:1.6.2-8.module+el8.9.0+19104+fcef53a3 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | slirp4netns | 1.1.8-3.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | toolbox +1 | 0.0.99.4-5.module+el8.9.0+19655+b08391f8 | RHSA-2023:6939, RHSA-2023:6938 |
| RHEL 8 | udica | 0.2.6-4.module+el8.9.0+19098+6e7a5e3f | RHSA-2023:6939, RHSA-2023:6938 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | toolbox +1 | 0.0.99.4-1.el9_2 | RHSA-2024:4443 |
| Red Hat OpenStack 17 | etcd | 3.4.14-3.el9ost | RHSA-2023:1014 |
| Red Hat OpenStack 16 | etcd | 3.3.23-12.el8ost | RHSA-2023:1275 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | toolbox +1 | 0.0.99.4-6.el9_3 | ALSA-2023:6346 |
| AlmaLinux 8 | buildah +1 | 1:1.24.6-7.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | cockpit-podman | 46-1.module_el8.7.0+3344+5bcd850f | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | conmon | 2:2.1.4-2.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | container-selinux | 2:2.205.0-3.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | containernetworking-plugins | 1:1.1.1-5.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | containers-common | 2:1-38.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | crit +4 | 3.15-3.module_el8.6.0+2877+8e437bf5 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | crun | 1.8.3-1.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | fuse-overlayfs | 1.9-2.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | libslirp +1 | 4.4.0-1.module_el8.6.0+2877+8e437bf5 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | netavark +1 | 2:1.0.1-38.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | oci-seccomp-bpf-hook | 1.2.5-2.module_el8.8.0+3468+16b86c82 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | podman +6 | 2:4.0.2-24.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | python3-podman | 4.0.0-2.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | runc | 1:1.1.5-2.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | skopeo +1 | 2:1.6.2-8.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | slirp4netns | 1.1.8-3.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | toolbox +1 | 0.0.99.4-5.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
| AlmaLinux 8 | udica | 0.2.6-4.module_el8.9.0+3627+db8ec155 | ALSA-2023:6939, ALSA-2023:6938 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | buildah | 1:1.24.6-7.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | cockpit-podman | 46-1.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | conmon | 2:2.1.4-2.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | container-selinux | 2:2.205.0-3.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | containernetworking-plugins | 1:1.1.1-5.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | containers-common | 2:1-38.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | criu | 3.15-3.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | crun | 1.8.3-1.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | fuse-overlayfs | 1.9-2.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | libslirp | 4.4.0-1.module+el8.9.0+1445+07728297 | RLSA-2023:6939, RLSA-2023:6938 |
| Rocky Linux 8 | oci-seccomp-bpf-hook | 1.2.5-2.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | podman | 2:4.0.2-24.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | python-podman | 4.0.0-2.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | runc | 1:1.1.5-2.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | slirp4netns | 1.1.8-3.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
| Rocky Linux 8 | udica | 0.2.6-4.module+el8.9.0+1445+07728297 | RLSA-2023:6938 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | buildah | 1.41.4-2 | — |
| Azure Linux 3 | delve | No fix yet | — |
| Azure Linux 3 | packer | 1.9.5-1 | — |
| Azure Linux 3 | podman | 5.6.1-2 | — |
| Azure Linux 2 (CBL-Mariner) | delve +2 | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | buildah +1 | 1:1.24.6-7.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | cockpit-podman | 46-1.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | conmon | 2:2.1.4-2.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | container-selinux | 2:2.205.0-3.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | containernetworking-plugins | 1:1.1.1-5.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | containers-common | 2:1-38.0.1.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | crit +4 | 3.15-3.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | crun | 1.8.3-1.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | fuse-overlayfs | 1.9-2.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | libslirp +1 | 4.4.0-1.module+el8.9.0+90021+ce997450 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | netavark +1 | 2:1.0.1-38.0.1.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | oci-seccomp-bpf-hook | 1.2.5-2.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | podman +6 | 2:4.0.2-24.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | python3-podman | 4.0.0-2.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | runc | 1:1.1.5-2.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | skopeo +1 | 2:1.6.2-8.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | slirp4netns | 1.1.8-3.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
| Oracle Linux 8 | udica | 0.2.6-4.module+el8.9.0+90044+a34bc939 | ELSA-2023-6939, ELSA-2023-6938 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | k3d +2 | 5.6.0-r11 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | gopkg.in/yaml.v2 | < 2.2.4 | 2.2.4 | GHSA-6q6q-88xp-6f2r |
Advisories 18
- ALSA-2023:6346 Moderate: toolbox security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:6939 Moderate: container-tools:rhel8 security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:6938 Moderate: container-tools:4.0 security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:6939 Red Hat Security Advisory: container-tools:rhel8 security and bug fix update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2023:6938 Red Hat Security Advisory: container-tools:4.0 security and bug fix update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2023:6346 Red Hat Security Advisory: toolbox security and bug fix update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2024:4443 Red Hat Security Advisory: toolbox security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:10784 Red Hat Security Advisory: rhc security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:10759 Red Hat Security Advisory: rhc security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:1014 Red Hat Security Advisory: Red Hat OpenStack Platform 17.0 (etcd) security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:1275 Red Hat Security Advisory: Red Hat OpenStack Platform (etcd) security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- USN-6287-1 golang-yaml.v2 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-3479-1 golang-yaml.v2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2023:6938 Moderate: container-tools:4.0 security and bug fix update Rocky Linux Security Advisories · Nov 28, 2025
- RLSA-2023:6939 Moderate: container-tools:rhel8 security and bug fix update Rocky Linux Security Advisories · Nov 28, 2025
- WID-SEC-2023-0468 Red Hat OpenShift: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 27, 2025
- ELSA-2023-6939 Moderate: container-tools:ol8 security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 18, 2023
- ELSA-2023-6938 Moderate: container-tools:4.0 security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 18, 2023
References
- https://github.com/go-yaml/yaml/commit/f221b8435cfb71e54062f6c6e99e9ade30b124d5
- https://github.com/go-yaml/yaml/releases/tag/v2.2.4
- https://pkg.go.dev/vuln/GO-2022-0956
- https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4SBIUECMLNC572P23DDOKJNKPJVX26SP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PW3XC47AUW5J5M2ULJX7WCCL3B2ETLMT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ANIOPUXWIHVRA6CEWXCGOMX3YYS6KFHG/