CVE-2026-27127
unknown
CVSS v3
—
CVSS v2
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VIR risk
—
Description
Craft CMS has Cloud Metadata SSRF Protection Bypass via DNS Rebinding
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | craftcms/cms | >=5.0.0-RC1,<5.8.23 | 5.8.23 |
| Packagist | craftcms/cms | >=3.5.0,<4.16.19 | 4.16.19 |
References
- https://github.com/craftcms/cms/security/advisories/GHSA-gp2f-7wcm-5fhx
- https://github.com/craftcms/cms/security/advisories/GHSA-x27p-wfqw-hfcc
- https://nvd.nist.gov/vuln/detail/CVE-2026-27127
- https://github.com/craftcms/cms/commit/a4cf3fb63bba3249cf1e2882b18a2d29e77a8575
- https://curl.se/libcurl/c/CURLOPT_RESOLVE.html
- https://github.com/craftcms/cms
- https://github.com/mogwailabs/DNSrebinder
- https://github.com/nccgroup/singularity
- https://github.com/taviso/rbndr
- https://unit42.paloaltonetworks.com/dns-rebinding
Verify integrity in audit chain (admin only). AS-IS.