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2 vulnerabilities found for erlang\/inets by erlang

CVE-2026-28808 (GCVE-0-2026-28808)

Vulnerability from nvd – Published: 2026-04-07 12:28 – Updated: 2026-04-07 14:38
VLAI?
Title
ScriptAlias CGI targets bypass directory auth in inets httpd (mod_auth vs mod_cgi path mismatch)
Summary
Incorrect Authorization vulnerability in Erlang OTP (inets modules) allows unauthenticated access to CGI scripts protected by directory rules when served via script_alias. When script_alias maps a URL prefix to a directory outside DocumentRoot, mod_auth evaluates directory-based access controls against the DocumentRoot-relative path while mod_cgi executes the script at the ScriptAlias-resolved path. This path mismatch allows unauthenticated access to CGI scripts that directory rules were meant to protect. This vulnerability is associated with program files lib/inets/src/http_server/mod_alias.erl, lib/inets/src/http_server/mod_auth.erl, and lib/inets/src/http_server/mod_cgi.erl. This issue affects OTP from OTP 17.0 until OTP 28.4.2, 27.3.4.10 and 26.2.5.19 corresponding to inets from 5.10 until 9.6.2, 9.3.2.4 and 9.1.0.6.
Severity ?
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-863 - Incorrect Authorization
Assigner
EEF
References
Impacted products
Vendor Product Version
Erlang OTP Affected: 5.10 , < * (otp)
    cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Erlang OTP Affected: 17.0 , < * (otp)
Affected: 07b8f441ca711f9812fad9e9115bab3c3aa92f79 , < * (git)
    cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Igor Morgenstern / Aisle Research Konrad Pietrzak
Show details on NVD website
To clipboard 

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CVE-2026-28808 (GCVE-0-2026-28808)

Vulnerability from cvelistv5 – Published: 2026-04-07 12:28 – Updated: 2026-04-07 14:38
VLAI?
Title
ScriptAlias CGI targets bypass directory auth in inets httpd (mod_auth vs mod_cgi path mismatch)
Summary
Incorrect Authorization vulnerability in Erlang OTP (inets modules) allows unauthenticated access to CGI scripts protected by directory rules when served via script_alias. When script_alias maps a URL prefix to a directory outside DocumentRoot, mod_auth evaluates directory-based access controls against the DocumentRoot-relative path while mod_cgi executes the script at the ScriptAlias-resolved path. This path mismatch allows unauthenticated access to CGI scripts that directory rules were meant to protect. This vulnerability is associated with program files lib/inets/src/http_server/mod_alias.erl, lib/inets/src/http_server/mod_auth.erl, and lib/inets/src/http_server/mod_cgi.erl. This issue affects OTP from OTP 17.0 until OTP 28.4.2, 27.3.4.10 and 26.2.5.19 corresponding to inets from 5.10 until 9.6.2, 9.3.2.4 and 9.1.0.6.
Severity ?
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-863 - Incorrect Authorization
Assigner
EEF
References
Impacted products
Vendor Product Version
Erlang OTP Affected: 5.10 , < * (otp)
    cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Erlang OTP Affected: 17.0 , < * (otp)
Affected: 07b8f441ca711f9812fad9e9115bab3c3aa92f79 , < * (git)
    cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Igor Morgenstern / Aisle Research Konrad Pietrzak
Show details on NVD website
To clipboard 

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              "value": "Incorrect Authorization vulnerability in Erlang OTP (inets modules) allows unauthenticated access to CGI scripts protected by \u003ctt\u003edirectory\u003c/tt\u003e rules when served via \u003ctt\u003escript_alias\u003c/tt\u003e.\u003cp\u003eWhen \u003ctt\u003escript_alias\u003c/tt\u003e maps a URL prefix to a directory outside \u003ctt\u003eDocumentRoot\u003c/tt\u003e, \u003ctt\u003emod_auth\u003c/tt\u003e evaluates \u003ctt\u003edirectory\u003c/tt\u003e-based access controls against the \u003ctt\u003eDocumentRoot\u003c/tt\u003e-relative path while \u003ctt\u003emod_cgi\u003c/tt\u003e executes the script at the \u003ctt\u003eScriptAlias\u003c/tt\u003e-resolved path. This path mismatch allows unauthenticated access to CGI scripts that \u003ctt\u003edirectory\u003c/tt\u003e rules were meant to protect.\u003c/p\u003e\u003cp\u003eThis vulnerability is associated with program files \u003ctt\u003elib/inets/src/http_server/mod_alias.erl\u003c/tt\u003e, \u003ctt\u003elib/inets/src/http_server/mod_auth.erl\u003c/tt\u003e, and \u003ctt\u003elib/inets/src/http_server/mod_cgi.erl\u003c/tt\u003e.\u003c/p\u003e\u003cp\u003eThis issue affects OTP from OTP 17.0 until OTP 28.4.2, 27.3.4.10 and 26.2.5.19 corresponding to inets from 5.10 until 9.6.2, 9.3.2.4 and 9.1.0.6.\u003c/p\u003e"
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          "value": "Incorrect Authorization vulnerability in Erlang OTP (inets modules) allows unauthenticated access to CGI scripts protected by directory rules when served via script_alias.\n\nWhen script_alias maps a URL prefix to a directory outside DocumentRoot, mod_auth evaluates directory-based access controls against the DocumentRoot-relative path while mod_cgi executes the script at the ScriptAlias-resolved path. This path mismatch allows unauthenticated access to CGI scripts that directory rules were meant to protect.\n\nThis vulnerability is associated with program files lib/inets/src/http_server/mod_alias.erl, lib/inets/src/http_server/mod_auth.erl, and lib/inets/src/http_server/mod_cgi.erl.\n\nThis issue affects OTP from OTP 17.0 until OTP 28.4.2, 27.3.4.10 and 26.2.5.19 corresponding to inets from 5.10 until 9.6.2, 9.3.2.4 and 9.1.0.6."
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            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "value": "GENERAL"
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              "description": "CWE-863 Incorrect Authorization",
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          "url": "https://github.com/erlang/otp/security/advisories/GHSA-3vhp-h532-mc3f"
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          "url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
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      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "ScriptAlias CGI targets bypass directory auth in inets httpd (mod_auth vs mod_cgi path mismatch)",
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          ],
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    "datePublished": "2026-04-07T12:28:16.056Z",
    "dateReserved": "2026-03-03T14:40:00.590Z",
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