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    4 vulnerabilities by QuivrHQ

    CVE-2026-82284 (GCVE-0-2026-82284)

    Vulnerability from nvd – Published: 2026-08-28 16:19 – Updated: 2026-08-28 20:23
    VLAI
    Title
    Quivr Chat Endpoints Missing Ownership Validation
    Summary
    Quivr versions through 0.0.322 fail to validate chat ownership in the GET /chat/{chat_id}/history, DELETE /chat/{chat_id}, and POST /chat/{chat_id}/question/answer endpoints. Authenticated attackers can read other users' conversation histories including private knowledge base content, delete arbitrary chats, and inject fabricated messages into other users' conversations.
    Severity
    8.6 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    8.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-28 20:23 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Vendor Product Version
    QuivrHQ quivr Affected: 0 , ≤ 0.0.322 (semver)
        cpe:2.3:a:quivr:quivr:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-07-03 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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    CVE-2026-82280 (GCVE-0-2026-82280)

    Vulnerability from nvd – Published: 2026-08-28 16:19 – Updated: 2026-08-28 16:19
    VLAI
    Title
    Quivr Prompt Endpoints Missing Ownership Validation
    Summary
    Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
    7.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Vendor Product Version
    QuivrHQ quivr Affected: 0 , ≤ 0.0.322 (semver)
        cpe:2.3:a:quivr:quivr:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-07-03 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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    CVE-2026-82284 (GCVE-0-2026-82284)

    Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-08-28 20:23
    VLAI
    Title
    Quivr Chat Endpoints Missing Ownership Validation
    Summary
    Quivr versions through 0.0.322 fail to validate chat ownership in the GET /chat/{chat_id}/history, DELETE /chat/{chat_id}, and POST /chat/{chat_id}/question/answer endpoints. Authenticated attackers can read other users' conversation histories including private knowledge base content, delete arbitrary chats, and inject fabricated messages into other users' conversations.
    Severity
    8.6 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    8.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-28 20:23 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Vendor Product Version
    QuivrHQ quivr Affected: 0 , ≤ 0.0.322 (semver)
        cpe:2.3:a:quivr:quivr:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-07-03 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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    CVE-2026-82280 (GCVE-0-2026-82280)

    Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-08-28 16:19
    VLAI
    Title
    Quivr Prompt Endpoints Missing Ownership Validation
    Summary
    Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
    7.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Vendor Product Version
    QuivrHQ quivr Affected: 0 , ≤ 0.0.322 (semver)
        cpe:2.3:a:quivr:quivr:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-07-03 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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      "references": [
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          "name": "GitHub Issue #3698",
          "tags": [
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          "url": "https://github.com/QuivrHQ/quivr/issues/3698"
        },
        {
          "tags": [
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          "url": "https://github.com/QuivrHQ/quivr"
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      "title": "Quivr Prompt Endpoints Missing Ownership Validation",
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    "dateReserved": "2026-08-28T11:12:50.590Z",
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