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CVE-2026-88790— proma-ai Proma File Preview Service file-preview-service.ts resolveTargetPath path traversal

Quick assessment

Affected
proma-ai Proma
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.

在 proma-ai 的 Proma（版本 0.19.37 及之前）中发现了一个安全漏洞。受影响的是组件 File Preview Service（文件预览服务）中文件 里的 函数。对参数 的不当处理会导致路径遍历（path traversal）漏洞。利用该漏洞需要本地访问权限，目前该漏洞的利用方式已公开，可能被利用。升级到版本 0.19.52 可以修复此问题，对应的补丁提交哈希为 。建议升级受影响的组件。 注意：该漏洞证明（PoC）中使用的 参数名与当前（0.19.52）的 IPC API 不匹配（0.19.52

CVSS 4.8 · Medium
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I. Basic Information for CVE-2026-88790

Vulnerability Information
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Vulnerability Title
proma-ai Proma File Preview Service file-preview-service.ts resolveTargetPath path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in proma-ai Proma up to 0.19.37. Affected is the function resolveTargetPath of the file apps/electron/src/main/lib/file-preview-service.ts of the component File Preview Service. Such manipulation of the argument file_path leads to path traversal. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Upgrading to version 0.19.52 is able to address this issue. The name of the patch is b7bf78ab74b1552c92fc98c7db9a8a8d92c631df. It is suggested to upgrade the affected component. The PoC's candidateBasePaths parameter name does not match the current IPC API (0.19.52 uses FileAccessOptions with internal getPreviewCandidateBasePaths()). The reporter likely targeted 0.16.3 where the IPC handler accepted raw string[] base paths. The core vulnerability - basename-collision fallback - is independent of the parameter name and is confirmed in source.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
proma-ai Proma 0.16.3 cpe:2.3:a:proma-ai:proma:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-88790

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III. Intelligence Information for CVE-2026-88790

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Patches & Fixes for CVE-2026-88790 (1)

Security Blog Posts for CVE-2026-88790 (1)

Vendor Pages for CVE-2026-88790 (1)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2026-88790

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