Answer in brief
CVE-2026-108259 records a High severity (CVSS 8.2) vulnerability in Tina: Code injection via unescaped Git branch name in generated client source. The current sources do not mark it as known exploited. The current feed maps @tinacms/cli (generic), tinacms/tinacms (generic), @tinacms/cli (npm), @tinacms/cli (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps @tinacms/cli (generic), tinacms/tinacms (generic), @tinacms/cli (npm), @tinacms/cli (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| @tinacms/cligeneric | <3.0.0 | 3.0.0 |
| tinacms/tinacmsgeneric | <3.0.0 | 3.0.0 |
| @tinacms/clinpm | <=2.7.0 | 3.0.0 |
| @tinacms/clinpm | >=0 <3.0.0 | 3.0.0 |
Published upstream
Oct 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 9, 2026
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.
Quoted source text, attributed separately from HOL analysis.