CVE-2026-27128
- 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
- 2026-04-10T05:37:04.806705Z
- 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