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CVE-2026-28676— OpenSift: Insufficient path containment checks in storage helpers could allow path traversal-style file operations

Quick assessment

Affected
OpenSift OpenSift
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenSift是OpenSift开源的一款人工智能学习助手。 OpenSift 1.6.3-alpha之前版本存在路径遍历漏洞，该漏洞源于多个存储助手使用的路径构建模式未统一强制执行基目录包含，可能导致文件读/写/删除流程中存在路径注入风险。

CVSS 8.8 · High EPSS 0.45% · P39
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I. Basic Information for CVE-2026-28676

Vulnerability Information
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Vulnerability Title
OpenSift: Insufficient path containment checks in storage helpers could allow path traversal-style file operations
Source: CVE Program / CVE List V5
Vulnerability Description
OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Prior to version 1.6.3-alpha, multiple storage helpers used path construction patterns that did not uniformly enforce base-directory containment. This created path-injection risk in file read/write/delete flows if malicious path-like values were introduced. This issue has been patched in version 1.6.3-alpha.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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
OpenSift 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSift是OpenSift开源的一款人工智能学习助手。 OpenSift 1.6.3-alpha之前版本存在路径遍历漏洞，该漏洞源于多个存储助手使用的路径构建模式未统一强制执行基目录包含，可能导致文件读/写/删除流程中存在路径注入风险。
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
OpenSift OpenSift < 1.6.3-alpha -

II. Public POCs for CVE-2026-28676

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10196 chars
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In-depth vulnerability mechanism
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-28676

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Patches & Fixes for CVE-2026-28676 (3)

Vendor Advisories for CVE-2026-28676 (1)

Vendor Pages for CVE-2026-28676 (1)

Same Patch Batch · OpenSift · 2026-03-06 · 3 CVEs total

CVE-2026-28677 8.2 HIGH OpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style
CVE-2026-28675 5.3 MEDIUM OpenSift: Sensitive implementation details exposed via raw exception messages and token-re

IV. Related Vulnerabilities

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