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    5 vulnerabilities by chimurai

    CVE-2026-55603 (GCVE-0-2026-55603)

    Vulnerability from cvelistv5 – Published: 2026-06-22 20:07 – Updated: 2026-06-23 12:21
    VLAI
    Title
    http-proxy-middleware: multipart/form-data field injection via unescaped CRLF in `fixRequestBody`
    Summary
    http-proxy-middleware is node.js http-proxy middleware. From 3.0.4 until 3.0.7 and 4.1.1, fixRequestBody() is the library's documented helper for re-emitting a request body that was already consumed by a body parser. When the outgoing Content-Type is multipart/form-data, it rebuilds the body with handlerFormDataBodyData(), which interpolates each req.body key and value directly into the multipart wire format without neutralizing CR/LF. A \r\n inside a value (or key) lets an attacker close the current part and inject an entirely new form part. Because the proxy's own body parser saw a single opaque value, any gateway-side policy or validation performed on req.body is evaluated against a different set of fields than the upstream backend ultimately parses a request/parameter desynchronization across the trust boundary. This vulnerability is fixed in 3.0.7 and 4.1.1.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
    Assigner
    References
    Impacted products
    Vendor Product Version
    chimurai http-proxy-middleware Affected: >= 3.0.4, < 3.0.7
    Affected: >= 4.0.0, < 4.1.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-55602 (GCVE-0-2026-55602)

    Vulnerability from cvelistv5 – Published: 2026-06-22 15:58 – Updated: 2026-06-23 14:18
    VLAI
    Title
    http-proxy-middleware `router` host+path substring matching allows Host-header-driven backend routing bypass
    Summary
    http-proxy-middleware is node.js http-proxy middleware. From 0.16.0 until 2.0.10, 3.0.6, and 4.1.0, http-proxy-middleware documents router proxy-table entries as host, path, or host+path selectors, but the host+path implementation uses unanchored substring matching on attacker-controlled request metadata. As a result, a crafted Host header that is only a superstring match for a configured host+path key can still route a request to an unintended backend. This vulnerability is fixed in 2.0.10, 3.0.6, and 4.1.0.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-20 - Improper Input Validation
    • CWE-187 - Partial String Comparison
    Assigner
    References
    Impacted products
    Vendor Product Version
    chimurai http-proxy-middleware Affected: >= 4.0.0, < 4.1.0
    Affected: >= 3.0.0, < 3.0.6
    Affected: >= 0.16.0, < 2.0.10
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-32997 (GCVE-0-2025-32997)

    Vulnerability from cvelistv5 – Published: 2025-04-15 00:00 – Updated: 2025-04-15 03:54
    VLAI
    Summary
    In http-proxy-middleware before 2.0.9 and 3.x before 3.0.5, fixRequestBody proceeds even if bodyParser has failed.
    Severity
    4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-754 - Improper Check for Unusual or Exceptional Conditions
    Assigner
    References
    Impacted products
    Vendor Product Version
    chimurai http-proxy-middleware Affected: 0 , < 2.0.9 (semver)
    Affected: 3.0.0 , < 3.0.5 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-32996 (GCVE-0-2025-32996)

    Vulnerability from cvelistv5 – Published: 2025-04-15 00:00 – Updated: 2025-04-15 03:55
    VLAI
    Summary
    In http-proxy-middleware before 2.0.8 and 3.x before 3.0.4, writeBody can be called twice because "else if" is not used.
    Severity
    4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-670 - Always-Incorrect Control Flow Implementation
    Assigner
    References
    Impacted products
    Vendor Product Version
    chimurai http-proxy-middleware Affected: 0 , < 2.0.8 (semver)
    Affected: 3.0.0 , < 3.0.4 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2024-21536 (GCVE-0-2024-21536)

    Vulnerability from cvelistv5 – Published: 2024-10-19 05:00 – Updated: 2024-10-21 16:31
    VLAI
    Summary
    Versions of the package http-proxy-middleware before 2.0.7, from 3.0.0 and before 3.0.3 are vulnerable to Denial of Service (DoS) due to an UnhandledPromiseRejection error thrown by micromatch. An attacker could kill the Node.js process and crash the server by making requests to certain paths.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Denial of Service (DoS)
    Assigner
    References
    Impacted products
    Vendor Product Version
    n/a http-proxy-middleware Affected: 0 , < 2.0.7 (semver)
    Affected: 3.0.0 , < 3.0.3 (semver)
    chimurai http-proxy-middleware Affected: 0 , < 2.0.7 (semver)
    Affected: 3.0.0 , < 3.0.3 (semver)
        cpe:2.3:a:chimurai:http-proxy-middleware:*:*:*:*:*:*:*:*
    		 Create a notification for this product.
    Credits
    Marc Hassan
    Show details on NVD website
    To clipboard 

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