CWE-636

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                "id": "CVE-2026-107735",
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            "url": "https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4"
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        ],
        "title": "CISA ADP Vulnrichment"
      }
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      "affected": [
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          "product": "sumatrapdf",
          "vendor": "sumatrapdfreader",
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              "version": "\u003c= 3.6.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, InitializePolicies() starts the sumatrapdfrestrict.ini path with gPolicyRestrictions set to Perm::All and only ORs permission bits, so the INI file never revokes permissions. Deploying SumatraPDF with this INI file, including a malformed file or zero-valued permission settings, can silently bypass configured disk, network, printing, registry, clipboard, preference, and fullscreen restrictions. The -restrict command-line path works correctly and is not affected. No fixed version is available as of this review."
        }
      ],
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            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.4,
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            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
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        "discovery": "UNKNOWN"
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      "title": "SumatraPDF: `sumatrapdfrestrict.ini` never revokes any permission (fail-open policy initialization)"
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          "product": "hMailServer",
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          "vendor": "Progressive Robot Ltd",
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          "value": "Found in the hMailServer project\u0027s own security review (Progressive Robot Ltd)"
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          "value": "Progressive Robot hMailServer 6.0.0 through 6.3.5 fails open when applying DANE (RFC 7672) to outbound SMTP delivery. The server\u0027s validating DNSSEC resolver treated a TLSA or MX lookup that did not complete (no answer, SERVFAIL, a malformed reply), an answer without the requested records and without an NSEC/NSEC3 proof of their absence, and an answer whose records carried no applicable RRSIG as if the recipient domain were unsigned, and from 6.2.19 it also delivered to mail exchangers taken from an unvalidated MX lookup that the DNSSEC-validated MX record set did not name. An attacker who can drop, forge or strip DNS answers on the path to the server\u0027s resolver, at the resolver, or between the resolver and the recipient domain\u0027s name servers, and who holds an active position on the SMTP path, can thereby disable DANE for a DNSSEC-signed recipient domain and cause messages to be delivered in cleartext or to a host of the attacker\u0027s choosing with an arbitrary certificate, where they can be read and modified."
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          "url": "https://gitlab.com/hmailserver/hmailserver/-/work_items/64"
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          "value": "Upgrade to hMailServer 6.3.6, which treats an incomplete, unsigned or unproven DNSSEC answer for a TLSA or MX lookup under a signed zone as indeterminate, does not use a mail exchanger whose lookup was indeterminate, defers the delivery when none is left, delivers only to mail exchangers named by a DNSSEC-validated MX record set, and (for a host whose DNS servers are IPv6 only) asks those IPv6 servers. Until then, for each recipient domain whose mail must be protected, an SMTP route that names its mail exchangers with the connection security \u0027STARTTLS (required)\u0027, with remote certificate verification on (VerifyRemoteSslCertificate=1), prevents delivery in cleartext or to another host for that domain; and the server\u0027s DNS resolver should be one reached over a trusted path, such as a validating resolver on the same host."
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      "title": "Not Failing Securely (\u0027Failing Open\u0027) in hMailServer"
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          "type": "reporter",
          "value": "Daniel Coles"
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          "value": "pgjdbc, the PostgreSQL JDBC Driver, versions 42.7.11 through 42.7.13 enforce no restriction when the requireAuth connection property excludes all six authentication methods the driver knows, for example requireAuth=!password,!md5,!gss,!sspi,!scram-sha-256,!none. The driver then accepts any method the server asks for, including cleartext password authentication. A value without a method in it, such as requireAuth=, (a single comma), is affected the same way. An attacker positioned between the application and its server can ask for cleartext password authentication and receive the database password. A positive list such as requireAuth=scram-sha-256, and a partial exclusion such as requireAuth=!password,!md5, are enforced correctly. The property has no default value, so a deployment that does not set it is not affected. 42.7.14 fixes the problem: such a connection is refused with SQLState 08004, and a value without a method in it is rejected as invalid."
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          "value": "Replace the requireAuth value with a positive list of the methods the server uses, for example requireAuth=scram-sha-256; a positive list is enforced correctly on every affected version. A deployment that uses SCRAM over TLS can also set channelBinding=require, which refuses every authentication request other than SCRAM. Verifying the server certificate with sslmode=verify-full against a trusted CA prevents an attacker from presenting a substitute server."
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          "packageName": "P4Search",
          "product": "P4 (Helix Core)",
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              "value": "P4 Search prior to 2026.4.2 does not fail securely when its service authentication token is blank. In affected configurations, an unauthenticated attacker with network access can obtain the highest application privilege, potentially leading to compromise of P4 Search and the connected P4 Server.\u003cbr\u003e"
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          "collectionURL": "https://github.com",
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          "packageURL": "pkg:github/hexpm/hex_core",
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              "type": "text/html",
              "value": "\u003cp\u003eAffects programs that use the \u003ccode\u003ehex_http_httpc\u003c/code\u003e adapter, the default in \u003ccode\u003ehex_core:default_config/0\u003c/code\u003e, without an \u003ccode\u003essl\u003c/code\u003e option in the adapter\u0027s \u003ccode\u003ehttp_options\u003c/code\u003e, on OTP 24, or on OTP 25 when \u003ccode\u003epublic_key:cacerts_get/0\u003c/code\u003e fails. hex_core versions before 0.11.0 are affected on OTP 25 and earlier whether or not the CA certificates load. On OTP 26 and later the \u003ccode\u003essl\u003c/code\u003e defaults verify the server certificate. Hex and rebar3 vendor hex_core but configure their own HTTP adapters, so they aren\u0027t affected.\u003c/p\u003e"
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              "base64": false,
              "type": "text/markdown",
              "value": "Affects programs that use the `hex_http_httpc` adapter, the default in `hex_core:default_config/0`, without an `ssl` option in the adapter\u0027s `http_options`, on OTP 24, or on OTP 25 when `public_key:cacerts_get/0` fails. hex_core versions before 0.11.0 are affected on OTP 25 and earlier whether or not the CA certificates load. On OTP 26 and later the `ssl` defaults verify the server certificate. Hex and rebar3 vendor hex_core but configure their own HTTP adapters, so they aren\u0027t affected."
            }
          ],
          "value": "Affects programs that use the hex_http_httpc adapter, the default in hex_core:default_config/0, without an ssl option in the adapter\u0027s http_options, on OTP 24, or on OTP 25 when public_key:cacerts_get/0 fails. hex_core versions before 0.11.0 are affected on OTP 25 and earlier whether or not the CA certificates load. On OTP 26 and later the ssl defaults verify the server certificate. Hex and rebar3 vendor hex_core but configure their own HTTP adapters, so they aren\u0027t affected."
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.20.0",
                  "versionStartIncluding": "0.1.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Peter Ullrich"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Eric Meadows-J\u00f6nsson"
        },
        {
          "lang": "en",
          "type": "analyst",
          "value": "Jonatan M\u00e4nnchen / EEF"
        }
      ],
      "dateAssigned": "2026-10-10T12:59:18.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eImproper Certificate Validation vulnerability in hexpm hex_core allows an attacker who can intercept HTTPS connections to impersonate hex.pm, repo.hex.pm or any other repository or API server to programs that use hex_core\u0027s default HTTP adapter on Erlang/OTP 24, or on OTP 25 when the operating system\u0027s CA certificates can\u0027t be loaded.\u003c/p\u003e\n\u003cp\u003e\u003ccode\u003ehex_core:default_config/0\u003c/code\u003e selects the built-in \u003ccode\u003ehex_http_httpc\u003c/code\u003e adapter. For an HTTPS request whose adapter config has no \u003ccode\u003essl\u003c/code\u003e option, \u003ccode\u003ehex_http_httpc:http_options/2\u003c/code\u003e builds options that verify the server certificate against \u003ccode\u003epublic_key:cacerts_get/0\u003c/code\u003e. When that call raises, the adapter prints a warning and sends the request without \u003ccode\u003essl\u003c/code\u003e options, so httpc uses the defaults of the \u003ccode\u003essl\u003c/code\u003e application, which before OTP 26 don\u0027t verify the server certificate. \u003ccode\u003epublic_key:cacerts_get/0\u003c/code\u003e doesn\u0027t exist on OTP 24, so every HTTPS request falls back there, and on OTP 25 it raises when no CA store is found. hex_core versions before 0.11.0 never set \u003ccode\u003essl\u003c/code\u003e options, so they don\u0027t verify the server certificate on OTP 25 and earlier whether or not a CA store is found.\u003c/p\u003e\n\u003cp\u003eThe fallback was intended and documented, but the documentation didn\u0027t make clear that it meant no certificate verification. Since hex_core 0.8.2 the README has warned that the built-in httpc adapter \"has insecure default settings\" and recommended other HTTP clients, and the adapter prints \"using default ssl options which are insecure\" on every request that falls back. hex_core 0.11.0 added certificate verification with the changelog entry \"Use secure SSL defaults for OTP 25+\". Neither the README nor the warning says that the server certificate isn\u0027t verified, the README doesn\u0027t say which OTP versions the warning applies to, and on OTP 25 without CA certificates the warning tells users to upgrade to OTP 25 or later, which they already run. This advisory is published so that users who took those notices as general advice know their HTTPS requests weren\u0027t authenticated.\u003c/p\u003e\n\u003cp\u003eThis issue affects hex_core: from 0.1.0 before 0.20.0.\u003c/p\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "Improper Certificate Validation vulnerability in hexpm hex_core allows an attacker who can intercept HTTPS connections to impersonate hex.pm, repo.hex.pm or any other repository or API server to programs that use hex_core\u0027s default HTTP adapter on Erlang/OTP 24, or on OTP 25 when the operating system\u0027s CA certificates can\u0027t be loaded.\n\n`hex_core:default_config/0` selects the built-in `hex_http_httpc` adapter. For an HTTPS request whose adapter config has no `ssl` option, `hex_http_httpc:http_options/2` builds options that verify the server certificate against `public_key:cacerts_get/0`. When that call raises, the adapter prints a warning and sends the request without `ssl` options, so httpc uses the defaults of the `ssl` application, which before OTP 26 don\u0027t verify the server certificate. `public_key:cacerts_get/0` doesn\u0027t exist on OTP 24, so every HTTPS request falls back there, and on OTP 25 it raises when no CA store is found. hex_core versions before 0.11.0 never set `ssl` options, so they don\u0027t verify the server certificate on OTP 25 and earlier whether or not a CA store is found.\n\nThe fallback was intended and documented, but the documentation didn\u0027t make clear that it meant no certificate verification. Since hex_core 0.8.2 the README has warned that the built-in httpc adapter \"has insecure default settings\" and recommended other HTTP clients, and the adapter prints \"using default ssl options which are insecure\" on every request that falls back. hex_core 0.11.0 added certificate verification with the changelog entry \"Use secure SSL defaults for OTP 25+\". Neither the README nor the warning says that the server certificate isn\u0027t verified, the README doesn\u0027t say which OTP versions the warning applies to, and on OTP 25 without CA certificates the warning tells users to upgrade to OTP 25 or later, which they already run. This advisory is published so that users who took those notices as general advice know their HTTPS requests weren\u0027t authenticated.\n\nThis issue affects hex_core: from 0.1.0 before 0.20.0."
            }
          ],
          "value": "Improper Certificate Validation vulnerability in hexpm hex_core allows an attacker who can intercept HTTPS connections to impersonate hex.pm, repo.hex.pm or any other repository or API server to programs that use hex_core\u0027s default HTTP adapter on Erlang/OTP 24, or on OTP 25 when the operating system\u0027s CA certificates can\u0027t be loaded.\n\nhex_core:default_config/0 selects the built-in hex_http_httpc adapter. For an HTTPS request whose adapter config has no ssl option, hex_http_httpc:http_options/2 builds options that verify the server certificate against public_key:cacerts_get/0. When that call raises, the adapter prints a warning and sends the request without ssl options, so httpc uses the defaults of the ssl application, which before OTP 26 don\u0027t verify the server certificate. public_key:cacerts_get/0 doesn\u0027t exist on OTP 24, so every HTTPS request falls back there, and on OTP 25 it raises when no CA store is found. hex_core versions before 0.11.0 never set ssl options, so they don\u0027t verify the server certificate on OTP 25 and earlier whether or not a CA store is found.\n\nThe fallback was intended and documented, but the documentation didn\u0027t make clear that it meant no certificate verification. Since hex_core 0.8.2 the README has warned that the built-in httpc adapter \"has insecure default settings\" and recommended other HTTP clients, and the adapter prints \"using default ssl options which are insecure\" on every request that falls back. hex_core 0.11.0 added certificate verification with the changelog entry \"Use secure SSL defaults for OTP 25+\". Neither the README nor the warning says that the server certificate isn\u0027t verified, the README doesn\u0027t say which OTP versions the warning applies to, and on OTP 25 without CA certificates the warning tells users to upgrade to OTP 25 or later, which they already run. This advisory is published so that users who took those notices as general advice know their HTTPS requests weren\u0027t authenticated.\n\nThis issue affects hex_core: from 0.1.0 before 0.20.0."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-94",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eAn attacker on the network path between a program using hex_core\u0027s default adapter and a Hex repository or API server completes the TLS handshake with any certificate. It receives the API keys, OAuth tokens and repository keys the program sends, and can alter API requests and responses. Registry signatures, which hex_core verifies by default, still prevent changes to registry contents. Hex and rebar3 aren\u0027t affected because they configure their own HTTP adapters.\u003c/p\u003e"
                },
                {
                  "base64": false,
                  "type": "text/markdown",
                  "value": "An attacker on the network path between a program using hex_core\u0027s default adapter and a Hex repository or API server completes the TLS handshake with any certificate. It receives the API keys, OAuth tokens and repository keys the program sends, and can alter API requests and responses. Registry signatures, which hex_core verifies by default, still prevent changes to registry contents. Hex and rebar3 aren\u0027t affected because they configure their own HTTP adapters."
                }
              ],
              "value": "An attacker on the network path between a program using hex_core\u0027s default adapter and a Hex repository or API server completes the TLS handshake with any certificate. It receives the API keys, OAuth tokens and repository keys the program sends, and can alter API requests and responses. Registry signatures, which hex_core verifies by default, still prevent changes to registry contents. Hex and rebar3 aren\u0027t affected because they configure their own HTTP adapters."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "value": "GENERAL"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "CWE-295 Improper Certificate Validation",
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            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-636",
              "description": "CWE-636 Not Failing Securely (\u0027Failing Open\u0027)",
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-12T13:15:29.040Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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      "references": [
        {
          "name": "GitHub Advisory",
          "tags": [
            "related",
            "vendor-advisory"
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          "url": "https://github.com/hexpm/hex_core/security/advisories/GHSA-p26c-h8c2-rwqj"
        },
        {
          "name": "EEF CNA record for CVE-2026-103502",
          "tags": [
            "related"
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          "url": "https://cna.erlef.org/cves/CVE-2026-103502.html"
        },
        {
          "name": "OSV record EEF-CVE-2026-103502",
          "tags": [
            "related"
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          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-103502"
        },
        {
          "name": "Introducing commit fbb6d9d in hexpm/hex_core",
          "tags": [
            "related"
          ],
          "url": "https://github.com/hexpm/hex_core/commit/fbb6d9de472e5edb8d6fb6b32a91cb266137892e"
        },
        {
          "name": "Fix commit b7b3a42 in hexpm/hex_core",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/hexpm/hex_core/commit/b7b3a42defb4ed8e20a5c68a4412ce68a95b7938"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpgrade hex_core to 0.20.0 or later. On OTP 24, or on OTP 25 without the operating system\u0027s CA certificates, HTTPS requests through \u003ccode\u003ehex_http_httpc\u003c/code\u003e then fail with \u003ccode\u003e{error, {cacerts_unavailable, Reason}}\u003c/code\u003e unless the adapter config has \u003ccode\u003essl\u003c/code\u003e options.\u003c/p\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "Upgrade hex_core to 0.20.0 or later. On OTP 24, or on OTP 25 without the operating system\u0027s CA certificates, HTTPS requests through `hex_http_httpc` then fail with `{error, {cacerts_unavailable, Reason}}` unless the adapter config has `ssl` options."
            }
          ],
          "value": "Upgrade hex_core to 0.20.0 or later. On OTP 24, or on OTP 25 without the operating system\u0027s CA certificates, HTTPS requests through hex_http_httpc then fail with {error, {cacerts_unavailable, Reason}} unless the adapter config has ssl options."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "hex_core\u0027s default HTTP adapter doesn\u0027t verify TLS certificates on OTP 24 and 25",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003ePass \u003ccode\u003essl\u003c/code\u003e options that verify the server certificate in the adapter config, for example \u003ccode\u003e{hex_http_httpc, #{http_options =\u0026gt; [{ssl, SslOpts}]}}\u003c/code\u003e, use another HTTP adapter, or run on OTP 26 or later.\u003c/p\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "Pass `ssl` options that verify the server certificate in the adapter config, for example `{hex_http_httpc, #{http_options =\u003e [{ssl, SslOpts}]}}`, use another HTTP adapter, or run on OTP 26 or later."
            }
          ],
          "value": "Pass ssl options that verify the server certificate in the adapter config, for example {hex_http_httpc, #{http_options =\u003e [{ssl, SslOpts}]}}, use another HTTP adapter, or run on OTP 26 or later."
        }
      ],
      "x_proofOfConcept": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003col\u003e\n\u003cli\u003eCompile \u003ccode\u003esrc/hex_http.erl\u003c/code\u003e and \u003ccode\u003esrc/hex_http_httpc.erl\u003c/code\u003e from hex_core main 4fbc5d1 in the \u003ccode\u003eerlang:24\u003c/code\u003e Docker image and run \u003ccode\u003ehex_http_httpc:request(get, \u0026lt;\u0026lt;\"https://self-signed.badssl.com/\"\u0026gt;\u0026gt;, #{}, undefined, #{profile =\u0026gt; default})\u003c/code\u003e after starting inets and ssl.\u003c/li\u003e\n\u003cli\u003eThe adapter prints \u003ccode\u003e[hex_http_httpc] using default ssl options which are insecure.\u003c/code\u003e and returns \u003ccode\u003e{ok, {200, Headers, Body}}\u003c/code\u003e from the server with the self-signed certificate.\u003c/li\u003e\n\u003cli\u003eIn the \u003ccode\u003eerlang:25\u003c/code\u003e image with an empty tmpfs mounted on \u003ccode\u003e/etc/ssl/certs\u003c/code\u003e, \u003ccode\u003epublic_key:cacerts_get/0\u003c/code\u003e raises and the request also returns \u003ccode\u003e{ok, {200, ...}}\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eIn the \u003ccode\u003eerlang:25\u003c/code\u003e image with the CA store present (150 certificates), the same request fails with \u003ccode\u003e{error, {failed_connect, ...}}\u003c/code\u003e after a \u003ccode\u003eBad Certificate\u003c/code\u003e alert.\u003c/li\u003e\n\u003c/ol\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "1. Compile `src/hex_http.erl` and `src/hex_http_httpc.erl` from hex_core main 4fbc5d1 in the `erlang:24` Docker image and run `hex_http_httpc:request(get, \u003c\u003c\"https://self-signed.badssl.com/\"\u003e\u003e, #{}, undefined, #{profile =\u003e default})` after starting inets and ssl.\n2. The adapter prints `[hex_http_httpc] using default ssl options which are insecure.` and returns `{ok, {200, Headers, Body}}` from the server with the self-signed certificate.\n3. In the `erlang:25` image with an empty tmpfs mounted on `/etc/ssl/certs`, `public_key:cacerts_get/0` raises and the request also returns `{ok, {200, ...}}`.\n4. In the `erlang:25` image with the CA store present (150 certificates), the same request fails with `{error, {failed_connect, ...}}` after a `Bad Certificate` alert."
            }
          ],
          "value": "* Compile src/hex_http.erl and src/hex_http_httpc.erl from hex_core main 4fbc5d1 in the erlang:24 Docker image and run hex_http_httpc:request(get, \u003c\u003c\"https://self-signed.badssl.com/\"\u003e\u003e, #{}, undefined, #{profile =\u003e default}) after starting inets and ssl.\n* The adapter prints [hex_http_httpc] using default ssl options which are insecure. and returns {ok, {200, Headers, Body}} from the server with the self-signed certificate.\n* In the erlang:25 image with an empty tmpfs mounted on /etc/ssl/certs, public_key:cacerts_get/0 raises and the request also returns {ok, {200, ...}}.\n* In the erlang:25 image with the CA store present (150 certificates), the same request fails with {error, {failed_connect, ...}} after a Bad Certificate alert."
        }
      ],
      "x_technicalAnalysis": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003col\u003e\n\u003cli\u003e\u003ccode\u003ehex_core:default_config/0\u003c/code\u003e sets \u003ccode\u003ehttp_adapter\u003c/code\u003e to \u003ccode\u003e{hex_http_httpc, #{profile =\u0026gt; default}}\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003ehex_http_httpc:request/5\u003c/code\u003e and \u003ccode\u003ehex_http_httpc:request_to_file/6\u003c/code\u003e build their httpc options with \u003ccode\u003ehttp_options/2\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eFor an \u003ccode\u003ehttps\u003c/code\u003e URI whose adapter config has no \u003ccode\u003essl\u003c/code\u003e entry in \u003ccode\u003ehttp_options\u003c/code\u003e, \u003ccode\u003ehttp_options/2\u003c/code\u003e adds \u003ccode\u003e{ssl, [{verify, verify_peer}, {cacerts, public_key:cacerts_get()}, ...]}\u003c/code\u003e inside a \u003ccode\u003etry\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eWhen \u003ccode\u003epublic_key:cacerts_get/0\u003c/code\u003e raises (\u003ccode\u003eundef\u003c/code\u003e on OTP 24; an error on OTP 25 when no CA store is found), the \u003ccode\u003ecatch\u003c/code\u003e prints a warning with \u003ccode\u003eio:format/1\u003c/code\u003e and returns the options without \u003ccode\u003essl\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003ehttpc then uses the \u003ccode\u003essl\u003c/code\u003e application\u0027s defaults, which are \u003ccode\u003everify_none\u003c/code\u003e before OTP 26, and completes the handshake with any certificate.\u003c/li\u003e\n\u003cli\u003ehex_core before 0.11.0 (e57b4fb) had no step 3: it never passed \u003ccode\u003essl\u003c/code\u003e options, so step 5 applied on every OTP version before 26.\u003c/li\u003e\n\u003c/ol\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "1. `hex_core:default_config/0` sets `http_adapter` to `{hex_http_httpc, #{profile =\u003e default}}`.\n2. `hex_http_httpc:request/5` and `hex_http_httpc:request_to_file/6` build their httpc options with `http_options/2`.\n3. For an `https` URI whose adapter config has no `ssl` entry in `http_options`, `http_options/2` adds `{ssl, [{verify, verify_peer}, {cacerts, public_key:cacerts_get()}, ...]}` inside a `try`.\n4. When `public_key:cacerts_get/0` raises (`undef` on OTP 24; an error on OTP 25 when no CA store is found), the `catch` prints a warning with `io:format/1` and returns the options without `ssl`.\n5. httpc then uses the `ssl` application\u0027s defaults, which are `verify_none` before OTP 26, and completes the handshake with any certificate.\n6. hex_core before 0.11.0 (e57b4fb) had no step 3: it never passed `ssl` options, so step 5 applied on every OTP version before 26."
            }
          ],
          "value": "* hex_core:default_config/0 sets http_adapter to {hex_http_httpc, #{profile =\u003e default}}.\n* hex_http_httpc:request/5 and hex_http_httpc:request_to_file/6 build their httpc options with http_options/2.\n* For an https URI whose adapter config has no ssl entry in http_options, http_options/2 adds {ssl, [{verify, verify_peer}, {cacerts, public_key:cacerts_get()}, ...]} inside a try.\n* When public_key:cacerts_get/0 raises (undef on OTP 24; an error on OTP 25 when no CA store is found), the catch prints a warning with io:format/1 and returns the options without ssl.\n* httpc then uses the ssl application\u0027s defaults, which are verify_none before OTP 26, and completes the handshake with any certificate.\n* hex_core before 0.11.0 (e57b4fb) had no step 3: it never passed ssl options, so step 5 applied on every OTP version before 26."
        }
      ]
    }
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  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-103502",
    "datePublished": "2026-10-12T13:15:29.040Z",
    "dateReserved": "2026-10-09T16:45:02.344Z",
    "dateUpdated": "2026-10-12T13:15:29.040Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
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        }
      ],
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              "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."
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            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
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            {
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              "description": "CWE-636",
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      "providerMetadata": {
        "dateUpdated": "2026-09-23T12:52:04.902Z",
        "orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
        "shortName": "WatchGuard"
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          ],
          "value": "AuthPoint Authentication Gateway 7.5.1"
        }
      ],
      "title": "AuthPoint Gateway Improper Authentication in LDAP Sync Allows First-Factor Authentication Bypass"
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