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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.

PUBLISHED Reserved 2026-02-17 | Published 2026-02-17 | Updated 2026-02-23 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Path Traversal

Timeline

2026-02-17:Advisory disclosed
2026-02-17:VulDB entry created
2026-02-21:VulDB entry last update

Credits

xcxr (VulDB User) reporter

References

vuldb.com/?id.346274 (VDB-346274 | Blossom File Upload BLOSManager.java put path traversal) vdb-entry technical-description

vuldb.com/?ctiid.346274 (VDB-346274 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.751988 (Submit #751988 | Blossom Blossom ≤ 1.17.1 Path Traversal) third-party-advisory

fx4tqqfvdw4.feishu.cn/docx/WmA3dzNfto3AxlxoFlqcu5amnXe exploit

cve.org (CVE-2026-2623)

nvd.nist.gov (CVE-2026-2623)

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