CVE-2026-108259
highTina is a headless content management system.
Tina is a headless content management system. Prior to 3.0.0, @tinacms/cli reads Git branch values from VERCEL_GIT_COMMIT_REF, GITHUB_BRANCH, or HEAD, incorporates the raw value into the API URL, and interpolates that URL into JavaScript string literals in packages/@tinacms/cli/src/next/codegen/index.ts and packages/@tinacms/cli/src/next/codegen/codegen/plugin.ts. A crafted Git-valid branch name containing a quote can terminate the generated string and inject an expression that executes when the generated client module is imported during a preview build. The injected code runs with the build process privileges and can read environment credentials, modify deployment artifacts, or make network requests. This issue is fixed in version 3.0.0.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/tinacms/tinacms/commit/d030d414d39e15de79bf36e4c728d57205e71dde security-advisories@github.com
- https://github.com/tinacms/tinacms/pull/7526 security-advisories@github.com
- https://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@3.0.0 security-advisories@github.com
- https://github.com/tinacms/tinacms/security/advisories/GHSA-pwhx-cvv3-qj5c security-advisories@github.com
- https://github.com/tinacms/tinacms/security/advisories/GHSA-pwhx-cvv3-qj5c 134c704f-9b21-4f2e-91b3-4a467353bcc0