Is craftcms/cms affected by CVE-2026-27129?

Packagist craftcms/cms is affected in >=5.0.0-RC1 =3.5.0 <4.16.19.

Is CVE-2026-27129 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

medium

CVE-2026-27129

Q: Is CVE-2026-27129 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

Packagist · craftcms/cms

Summary

Craft CMS: Cloud Metadata SSRF Protection Bypass via IPv6 Resolution

Severity: medium
EPSS: 0.4% (p34)
Also known as: GHSA-v2gc-rm6g-wrw9
Published: 2026-02-24

References

Related advisories

CVE-2026-28697 — critical · Packagist/craftcms/cms
CVE-2025-32432 — critical · Packagist/craftcms/cms
CVE-2024-56145 — critical · Packagist/craftcms/cms
CVE-2024-37843 — critical · Packagist/craftcms/cms
CVE-2026-44012 — high · Packagist/craftcms/cms
CVE-2026-44011 — high · Packagist/craftcms/cms
CVE-2026-44010 — high · Packagist/craftcms/cms
CVE-2026-33157 — high · Packagist/craftcms/cms

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.