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CVE-2026-119659 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Blossom through 1.17.1 contains an authorization bypass vulnerability that allows authenticated users to access other users' folders because FolderService queries filter only on folder id. Attackers can supply another user's folder id to /folder/info, /folder/upd, /folder/open or /folder/del to read storage paths, rename, toggle visibility, or delete folders.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/blossom-editor/blossom	[email protected]	Vendor
https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/folder/FolderService.java#L123-L202	[email protected]	Source CodeVendor
https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/resources/mapper/FolderMapper.xml#L64-L92	[email protected]	Source CodeVendor
https://github.com/blossom-editor/blossom/issues/213	[email protected]	ExploitIssue TrackingTechnical AnalysisVendor
https://hackmd.io/@hieuPenguinnn/blossom-folder-idor-cross-user-modify-delete	[email protected]	ExploitTechnical Analysis
https://www.vulncheck.com/advisories/blossom-through-1.17.1-authorization-bypass-via-folder-endpoints	[email protected]	AdvisoryBundleRemedyVendor

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-639	Authorization Bypass Through User-Controlled Key	[email protected]

Affected Products

Product	Versions
Blossom	<= 1.17.1 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Workaround:high effort Do not expose the folder endpoints to authenticated users.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 4, 2026	CVE Modified	CISA-ADP
Oct 30, 2026	New CVE Received	[email protected]