CVE-2026-2623— Blossom File Upload BLOSManager.java put path traversal
Quick assessment
Affected
n/a Blossom
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.
Blossom是Blossom公司的一个项目管理平台。 Blossom 1.17.1及之前版本存在路径遍历漏洞，该漏洞源于文件上传组件中路径处理不当，可能导致路径遍历攻击。
Possible ATT&CK Techniques 3 AI
T1048 · Exfiltration Over Alternative Protocol T1059 · Command and Scripting Interpreter T1083 · File and Directory Discovery
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I. Basic Information for CVE-2026-2623
Vulnerability Information
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Vulnerability Title
Blossom File Upload BLOSManager.java put path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in Blossom up to 1.17.1. This issue affects the function put of the file blossom-backend/common/common-iaas/src/main/java/com/blossom/common/iaas/blos/BLOSManager.java of the component File Upload. This manipulation causes path traversal. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
Vulnerability Title
Blossom 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Blossom是Blossom公司的一个项目管理平台。 Blossom 1.17.1及之前版本存在路径遍历漏洞，该漏洞源于文件上传组件中路径处理不当，可能导致路径遍历攻击。
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 |
|---|---|---|---|---|
| - | Blossom | 1.17.0 | - |
|
II. Public POCs for CVE-2026-2623
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · n/a · 2026-02-17 · 17 CVEs total
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IV. Related Vulnerabilities
Same weakness: CWE-22
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CVE-2026-109118
Improper Limitation of a Pathname to a Restricted Directory -
CVE-2026-103896
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CVE-2026-93767
Tainacan <= 1.3.0 - Authenticated (Subscriber+) Path Travers -
CVE-2026-109221
Groundhogg <= 4.9.3 - Authenticated (Sales Representative+) -
CVE-2026-104769
Debloat <= 1.3.0 - Unauthenticated Arbitrary File Read via '
V. Comments for CVE-2026-2623
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