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CVE-2026-33949— @tinacms/graphql has Path Traversal that leads to overwrite of arbitrary files

Quick assessment

Affected
tinacms tinacms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TinaCMS是Tina开源的一个用于 Markdown、MDX 和 JSON 的开源无头 CMS。 TinaCMS 2.2.2之前版本存在安全漏洞，该漏洞源于@tinacms/graphql存在路径遍历，未经验证的用户可通过操作GraphQL突变中的relativePath参数在项目根目录内写入和覆盖任意文件，可能导致替换关键服务器配置文件和通过破坏构建脚本执行任意命令。

CVSS 8.1 · High EPSS 0.39% · P32
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I. Basic Information for CVE-2026-33949

Vulnerability Information
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Vulnerability Title
@tinacms/graphql has Path Traversal that leads to overwrite of arbitrary files
Source: CVE Program / CVE List V5
Vulnerability 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 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
TinaCMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TinaCMS是Tina开源的一个用于 Markdown、MDX 和 JSON 的开源无头 CMS。 TinaCMS 2.2.2之前版本存在安全漏洞，该漏洞源于@tinacms/graphql存在路径遍历，未经验证的用户可通过操作GraphQL突变中的relativePath参数在项目根目录内写入和覆盖任意文件，可能导致替换关键服务器配置文件和通过破坏构建脚本执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
tinacms tinacms < 2.2.2 -

II. Public POCs for CVE-2026-33949

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III. Intelligence Information for CVE-2026-33949

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Vendor Advisories for CVE-2026-33949 (1)

Same Patch Batch · tinacms · 2026-04-01 · 3 CVEs total

CVE-2026-34604 7.1 HIGH @tinacms/graphql's `FilesystemBridge` Path Validation Can Be Bypassed via Symlinks or Junc
CVE-2026-34603 7.1 HIGH @tinacms/graphql's Media Endpoints Can Escape the Media Root via Symlinks or Junctions

IV. Related Vulnerabilities

Same product: tinacms
Same vendor: tinacms
Same weakness: CWE-22

V. Comments for CVE-2026-33949

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