CVE-2026-33949
Published: 01 April 2026
Description
Tina is a headless content management system. Prior to version 2.2.2, a path traversal vulnerability in @tinacms/graphql allows unauthenticated users to write and overwrite arbitrary files within the project root. This is achieved by manipulating the relativePath parameter in GraphQL…
more
mutations. The impact includes the ability to replace critical server configuration files and potentially execute arbitrary commands by sabotaging build script. This issue has been patched in version 2.2.2.
Mitigating Controls (NIST 800-53 r5)AI
Validates the relativePath parameter in GraphQL mutations to directly prevent path traversal enabling arbitrary file writes and overwrites.
Remediates the specific path traversal flaw by applying the patch in Tina version 2.2.2 as identified in the security advisory.
Enforces approved access authorizations to restrict unauthorized write access to project root files and directories.
Security SummaryAI
CVE-2026-33949 is a path traversal vulnerability (CWE-22, CWE-73) affecting Tina, a headless content management system, specifically in the @tinacms/graphql component prior to version 2.2.2. The flaw allows manipulation of the relativePath parameter in GraphQL mutations, enabling unauthenticated users to write and overwrite arbitrary files within the project root. It has a CVSS v3.1 base score of 8.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H), highlighting high integrity and availability impacts with network accessibility and low attack complexity.
An attacker with low privileges can exploit this vulnerability remotely without user interaction by sending crafted GraphQL mutations. Successful exploitation grants the ability to replace critical server configuration files and potentially execute arbitrary commands through sabotage of build scripts, leading to significant compromise of the affected Tina deployment.
The issue has been addressed in Tina version 2.2.2, as detailed in the GitHub Security Advisory at https://github.com/tinacms/tinacms/security/advisories/GHSA-v9p7-gf3q-h779. Security practitioners should upgrade to the patched version and review access to GraphQL endpoints to mitigate risks.
Details
- CWE(s)
Affected Products
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The path traversal vulnerability in the public-facing GraphQL component of Tina CMS directly enables exploitation of a public-facing application (T1190) to achieve arbitrary file writes, potentially leading to server compromise.