CVE-2026-119644

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    CVE-2026-119644

    Published: 30 Oct 2026Last Modified: 7 Nov 2026

    Summary: Blossom through 1.17.1 Authorization Bypass via Picture Delete and Star Endpoints

    Details: Blossom through 1.17.1 contains an authorization bypass vulnerability that allows authenticated non-readonly users to modify other users' pictures by supplying arbitrary picture ids. Attackers can call the picture delete, /picture/del/batch, or /picture/star endpoints to permanently delete victims' images and stored files or change their star status.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119644.json, https://hackmd.io/@hieuPenguinnn/blossom-picture-idor-cross-user-delete, https://nvd.nist.gov/vuln/detail/CVE-2026-119644, https://www.vulncheck.com/advisories/blossom-through-1.17.1-authorization-bypass-via-picture-delete-and-star-endpoints, https://github.com/blossom-editor/blossom/issues/214, https://github.com/blossom-editor/blossom, https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/picture/PictureController.java#L56-L109, https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/picture/PictureService.java#L222-L232

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    v1.17.1
    v1.17.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-119644 | CVE-DB