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    4 vulnerabilities by @fastify/static

    CVE-2026-6410 (GCVE-0-2026-6410)

    Vulnerability from nvd – Published: 2026-04-16 13:29 – Updated: 2026-04-16 14:19
    VLAI
    Title
    @fastify/static vulnerable to path traversal in directory listing
    Summary
    @fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path() function resolves directories outside the configured static root using path.join() without a containment check. A remote unauthenticated attacker can obtain directory listings for arbitrary directories accessible to the Node.js process, disclosing directory and file names. File contents are not disclosed. Upgrade to @fastify/static 9.1.1 to fix this issue. As a workaround, disable directory listing by removing the list option from the plugin configuration.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Assigner
    References
    Impacted products
    Vendor Product Version
    @fastify/static @fastify/static Affected: 8.0.0 , < 9.1.1 (semver)
    Unaffected: 9.1.1 (semver)
    		Create a notification for this product.
    Credits
    yuki-matsuhashi mcollina UlisesGascon climba03003
    Show details on NVD website
    To clipboard 

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    CVE-2026-6414 (GCVE-0-2026-6414)

    Vulnerability from nvd – Published: 2026-04-16 13:09 – Updated: 2026-04-16 13:48
    VLAI
    Title
    @fastify/static vulnerable to route guard bypass via encoded path separators
    Summary
    @fastify/static versions 8.0.0 through 9.1.0 decode percent-encoded path separators (%2F) before filesystem resolution, while Fastify's router treats them as literal characters. This mismatch allows attackers to bypass route-based middleware or guards that protect files served by @fastify/static. For example, a route guard on a protected path can be circumvented by encoding the path separator in the URL. Upgrade to @fastify/static 9.1.1 to fix this issue. There are no workarounds.
    Severity
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-177 - Improper Handling of URL Encoding (Hex Encoding)
    Assigner
    References
    Impacted products
    Vendor Product Version
    @fastify/static @fastify/static Affected: 8.0.0 , < 9.1.1 (semver)
    Unaffected: 9.1.1 (semver)
    		Create a notification for this product.
    Credits
    blakeembrey mcollina UlisesGascon climba03003
    Show details on NVD website
    To clipboard 

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    CVE-2026-6410 (GCVE-0-2026-6410)

    Vulnerability from cvelistv5 – Published: 2026-04-16 13:29 – Updated: 2026-04-16 14:19
    VLAI
    Title
    @fastify/static vulnerable to path traversal in directory listing
    Summary
    @fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path() function resolves directories outside the configured static root using path.join() without a containment check. A remote unauthenticated attacker can obtain directory listings for arbitrary directories accessible to the Node.js process, disclosing directory and file names. File contents are not disclosed. Upgrade to @fastify/static 9.1.1 to fix this issue. As a workaround, disable directory listing by removing the list option from the plugin configuration.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Assigner
    References
    Impacted products
    Vendor Product Version
    @fastify/static @fastify/static Affected: 8.0.0 , < 9.1.1 (semver)
    Unaffected: 9.1.1 (semver)
    		Create a notification for this product.
    Credits
    yuki-matsuhashi mcollina UlisesGascon climba03003
    Show details on NVD website
    To clipboard 

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    CVE-2026-6414 (GCVE-0-2026-6414)

    Vulnerability from cvelistv5 – Published: 2026-04-16 13:09 – Updated: 2026-04-16 13:48
    VLAI
    Title
    @fastify/static vulnerable to route guard bypass via encoded path separators
    Summary
    @fastify/static versions 8.0.0 through 9.1.0 decode percent-encoded path separators (%2F) before filesystem resolution, while Fastify's router treats them as literal characters. This mismatch allows attackers to bypass route-based middleware or guards that protect files served by @fastify/static. For example, a route guard on a protected path can be circumvented by encoding the path separator in the URL. Upgrade to @fastify/static 9.1.1 to fix this issue. There are no workarounds.
    Severity
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-177 - Improper Handling of URL Encoding (Hex Encoding)
    Assigner
    References
    Impacted products
    Vendor Product Version
    @fastify/static @fastify/static Affected: 8.0.0 , < 9.1.1 (semver)
    Unaffected: 9.1.1 (semver)
    		Create a notification for this product.
    Credits
    blakeembrey mcollina UlisesGascon climba03003
    Show details on NVD website
    To clipboard 

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