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NVD Vulnerability Details :
CVE-2026-27127
Analyzed
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-24 Feb, 2026 | 03:16
Updated At-25 Feb, 2026 | 19:31

Craft is a content management system (CMS). In versions 4.5.0-RC1 through 4.16.18 and 5.0.0-RC1 through 5.8.22, the SSRF validation in Craft CMS’s GraphQL Asset mutation performs DNS resolution separately from the HTTP request. This Time-of-Check-Time-of-Use (TOCTOU) vulnerability enables DNS rebinding attacks, where an attacker’s DNS server returns different IP addresses for validation compared to the actual request. This is a bypass of the security fix for CVE-2025-68437 that allows access to all blocked IPs, not just IPv6 endpoints. Exploitation requires GraphQL schema permissions for editing assets in the `<VolumeName>` volume and creating assets in the `<VolumeName>` volume. These permissions may be granted to authenticated users with appropriate GraphQL schema access and/or Public Schema (if misconfigured with write permissions). Versions 4.16.19 and 5.8.23 patch the issue.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.07.0HIGH
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.16.3MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Type: Secondary
Version: 4.0
Base score: 7.0
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 6.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CPE Matches

craftcms
craftcms
>>craft_cms>>Versions from 3.5.1(inclusive) to 4.16.19(exclusive)
cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
craftcms
craftcms
>>craft_cms>>Versions from 5.0.1(inclusive) to 5.8.23(exclusive)
cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
craftcms
craftcms
>>craft_cms>>3.5.0
cpe:2.3:a:craftcms:craft_cms:3.5.0:-:*:*:*:*:*:*
craftcms
craftcms
>>craft_cms>>5.0.0
cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*
craftcms
craftcms
>>craft_cms>>5.0.0
cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-367Primarysecurity-advisories@github.com
CWE ID: CWE-367
Type: Primary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/craftcms/cms/commit/a4cf3fb63bba3249cf1e2882b18a2d29e77a8575security-advisories@github.com
Patch
https://github.com/craftcms/cms/security/advisories/GHSA-gp2f-7wcm-5fhxsecurity-advisories@github.com
Exploit
Mitigation
Vendor Advisory
https://github.com/craftcms/cms/security/advisories/GHSA-x27p-wfqw-hfccsecurity-advisories@github.com
Exploit
Patch
Vendor Advisory
Hyperlink: https://github.com/craftcms/cms/commit/a4cf3fb63bba3249cf1e2882b18a2d29e77a8575
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/craftcms/cms/security/advisories/GHSA-gp2f-7wcm-5fhx
Source: security-advisories@github.com
Resource:
Exploit
Mitigation
Vendor Advisory
Hyperlink: https://github.com/craftcms/cms/security/advisories/GHSA-x27p-wfqw-hfcc
Source: security-advisories@github.com
Resource:
Exploit
Patch
Vendor Advisory
Change History
0Changes found

Details not found