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CVE-2026-119659medium5.4

Blossom through 1.17.1 Authorization Bypass via Folder Endpoints

Impact

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.

Source excerpt · VulnCheck

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

blossom-editor · VulnCheck

Blossom

1 range
VulnCheck version evidence

Package identity

pkg:github/blossom-editor/blossom

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 1.17.1

semver versions

unaffected

unknown

Other versions: unaffected

Original source 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.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119659

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-639 ↗

Authorization Bypass Through User-Controlled Key

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:wangyunf:blossom:*:*:*:*:*:*:*:*

Through (inclusive): 1.17.1

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:wangyunf:blossom:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "1.17.1"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 1
VulnCheck

Assigning organization

2026-10-30

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

6 sources
github.com/blossom-editor/blossom/issues/213
issue-trackingVulnCheck
github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/folder/FolderService.java
technical-descriptionVulnCheck
github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/resources/mapper/FolderMapper.xml
technical-descriptionVulnCheck
hackmd.io/@hieuPenguinnn/blossom-folder-idor-cross-user-modify-delete
third-party-advisoryVulnCheck
github.com/blossom-editor/blossom
productVulnCheck
www.vulncheck.com/advisories/blossom-through-1.17.1-authorization-bypass-via-folder-endpoints
third-party-advisoryVulnCheck