CVE-2026-27128

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Source
https://cve.org/CVERecord?id=CVE-2026-27128
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27128.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-27128
Aliases
Published
2026-02-24T02:42:53.706Z
Modified
2026-03-03T02:56:45.854266Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N CVSS Calculator
Summary
Craft CMS's race condition in Token Service potentially allows for token usage greater than the token limit
Details

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, a Time-of-Check-Time-of-Use (TOCTOU) race condition exists in Craft CMS’s token validation service for tokens that explicitly set a limited usage. The getTokenRoute() method reads a token’s usage count, checks if it’s within limits, then updates the database in separate non-atomic operations. By sending concurrent requests, an attacker can use a single-use impersonation token multiple times before the database update completes. To make this work, an attacker needs to obtain a valid user account impersonation URL with a non-expired token via some other means and exploit a race condition while bypassing any rate-limiting rules in place. For this to be a privilege escalation, the impersonation URL must include a token for a user account with more permissions than the current user. Versions 4.16.19 and 5.8.23 patch the issue.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27128.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-367"
    ]
}
References

Affected packages

Git / github.com/craftcms/cms

Affected ranges

Type
GIT
Repo
https://github.com/craftcms/cms
Events
Introduced
04755d93f86d07cc183db47db8a0eee106892e30
Fixed
daf0ed01c7d2c194ba4a405290e43934d020eef2

Affected versions

3.*
3.9.13
3.9.14
3.9.15
4.*
4.10.0
4.10.0-beta.1
4.10.0-beta.2
4.10.1
4.10.2
4.10.3
4.10.4
4.10.5
4.10.6
4.10.7
4.10.8
4.11.0
4.11.0.1
4.11.0.2
4.11.1
4.11.2
4.11.3
4.11.4
4.11.5
4.12.0
4.12.1
4.12.2
4.12.3
4.12.4
4.12.4.1
4.12.5
4.12.6
4.12.6.1
4.12.7
4.12.8
4.12.9
4.13.0
4.13.1
4.13.1.1
4.13.10
4.13.2
4.13.3
4.13.4
4.13.5
4.13.6
4.13.7
4.13.8
4.13.9
4.14.0
4.14.0.1
4.14.0.2
4.14.1
4.14.10
4.14.11
4.14.11.1
4.14.12
4.14.13
4.14.14
4.14.15
4.14.2
4.14.3
4.14.4
4.14.5
4.14.6
4.14.7
4.14.8
4.14.8.1
4.14.9
4.15.0
4.15.0-beta.1
4.15.0-beta.2
4.15.0.1
4.15.0.2
4.15.1
4.15.2
4.15.3
4.15.4
4.15.5
4.15.6
4.15.6.1
4.15.6.2
4.15.7
4.16.0
4.16.1
4.16.10
4.16.11
4.16.12
4.16.13
4.16.14
4.16.15
4.16.16
4.16.17
4.16.18
4.16.19
4.16.2
4.16.3
4.16.4
4.16.5
4.16.6
4.16.6.1
4.16.7
4.16.8
4.16.9
4.16.9.1
4.8.10
4.8.11
4.8.6
4.8.7
4.8.8
4.8.9
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
4.9.6
4.9.7
5.*
5.0.0
5.0.0-RC1
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.1.0
5.1.1
5.1.10
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.8
5.1.9
5.2.0
5.2.0-beta.1
5.2.0-beta.2
5.2.0-beta.3
5.2.0-beta.4
5.2.0-beta.5
5.2.0-beta.6
5.2.1
5.2.10
5.2.2
5.2.3
5.2.4
5.2.4.1
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.3.0
5.3.0-beta.1
5.3.0-beta.2
5.3.0.1
5.3.0.2
5.3.0.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.4.0
5.4.0.1
5.4.1
5.4.10
5.4.10.1
5.4.2
5.4.3
5.4.4
5.4.5
5.4.5.1
5.4.6
5.4.7
5.4.7.1
5.4.8
5.4.9
5.5.0
5.5.0.1
5.5.1
5.5.1.1
5.5.10
5.5.2
5.5.3
5.5.4
5.5.5
5.5.6
5.5.6.1
5.5.7
5.5.8
5.5.9
5.6.0
5.6.0.1
5.6.0.2
5.6.1
5.6.10
5.6.10.1
5.6.10.2
5.6.11
5.6.12
5.6.13
5.6.14
5.6.15
5.6.16
5.6.17
5.6.2
5.6.3
5.6.4
5.6.5
5.6.5.1
5.6.6
5.6.7
5.6.8
5.6.9
5.6.9.1
5.7.0
5.7.0-beta.1
5.7.0-beta.2
5.7.1
5.7.1.1
5.7.10
5.7.11
5.7.2
5.7.3
5.7.4
5.7.5
5.7.6
5.7.7
5.7.8
5.7.8.1
5.7.8.2
5.7.9
5.8.0
5.8.1
5.8.10
5.8.11
5.8.12
5.8.13
5.8.13.1
5.8.13.2
5.8.14
5.8.15
5.8.16
5.8.17
5.8.18
5.8.19
5.8.2
5.8.20
5.8.21
5.8.22
5.8.3
5.8.4
5.8.5
5.8.6
5.8.7
5.8.8
5.8.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27128.json"