282 lines
13 KiB
JSON
282 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-47074",
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"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"state": "PUBLISHED",
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"assignerShortName": "EEF",
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"dateReserved": "2026-05-18T17:28:08.322Z",
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"datePublished": "2026-05-28T09:05:54.815Z",
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"dateUpdated": "2026-05-29T04:40:43.232Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://hex.pm",
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"cpes": [
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"cpe:2.3:a:ex_aws_sns_project:ex_aws_sns:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.ExAws.SNS'",
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"'Elixir.ExAws.SNS.PublicKeyCache'"
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],
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"packageName": "ex_aws_sns",
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"packageURL": "pkg:hex/ex_aws_sns",
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"product": "ex_aws_sns",
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"programFiles": [
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"lib/ex_aws/sns.ex",
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"lib/ex_aws/sns/public_key_cache.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.ExAws.SNS':verify_message/1"
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},
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{
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"name": "'Elixir.ExAws.SNS.PublicKeyCache':get/1"
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}
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],
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"repo": "https://github.com/ex-aws/ex_aws_sns",
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"vendor": "ex-aws",
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"versions": [
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{
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"lessThan": "2.3.5",
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"status": "affected",
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"version": "2.0.1",
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"versionType": "semver"
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}
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]
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},
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{
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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:ex_aws_sns_project:ex_aws_sns:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.ExAws.SNS'",
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"'Elixir.ExAws.SNS.PublicKeyCache'"
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],
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"packageName": "ex-aws/ex_aws_sns",
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"packageURL": "pkg:github/ex-aws/ex_aws_sns",
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"product": "ex_aws_sns",
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"programFiles": [
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"lib/ex_aws/sns.ex",
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"lib/ex_aws/sns/public_key_cache.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.ExAws.SNS':verify_message/1"
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},
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{
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"name": "'Elixir.ExAws.SNS.PublicKeyCache':get/1"
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}
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],
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"repo": "https://github.com/ex-aws/ex_aws_sns",
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"vendor": "ex-aws",
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"versions": [
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{
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"lessThan": "1853d280b152d10384a1e21a22cf22152a60be48",
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"status": "affected",
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"version": "a7ec21880943f4dac1d59bda557db0ffcd2b61fa",
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"versionType": "git"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p>The application must expose an HTTP endpoint that calls <tt>'Elixir.ExAws.SNS':verify_message/1</tt> on incoming request bodies.</p>"
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}
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],
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"value": "The application must expose an HTTP endpoint that calls 'Elixir.ExAws.SNS':verify_message/1 on incoming request bodies."
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:ex_aws_sns_project:ex_aws_sns:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "2.3.5",
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"versionStartIncluding": "2.0.1",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "AND"
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}
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],
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"operator": "OR"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Peter Ullrich"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Bernard Duggan"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Jonatan Männchen / EEF"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Jonatan Männchen / EEF"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Improper Certificate Validation vulnerability in ex-aws ex_aws_sns (<tt>ExAws.SNS</tt>, <tt>ExAws.SNS.PublicKeyCache</tt> modules) allows Signature Spoofing by Improper Validation.<p>This vulnerability is associated with program files <tt>lib/ex_aws/sns.ex</tt>, <tt>lib/ex_aws/sns/public_key_cache.ex</tt> and program routines <tt>'Elixir.ExAws.SNS':verify_message/1</tt>, <tt>'Elixir.ExAws.SNS.PublicKeyCache':get/1</tt>.</p><p><tt>'Elixir.ExAws.SNS':verify_message/1</tt> fetches the signing certificate from the <tt>SigningCertURL</tt> field of the incoming SNS message without validating that the URL uses HTTPS or that the host matches an AWS-owned SNS certificate domain. An unauthenticated attacker who can POST to an endpoint that calls <tt>verify_message/1</tt> can supply an attacker-controlled <tt>SigningCertURL</tt>, sign a forged SNS message with their own key, and cause the function to return <tt>:ok</tt>, completely bypassing SNS signature verification.</p><p>This issue affects ex_aws_sns: from 2.0.1 before 2.3.5.</p>"
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}
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],
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"value": "Improper Certificate Validation vulnerability in ex-aws ex_aws_sns (ExAws.SNS, ExAws.SNS.PublicKeyCache modules) allows Signature Spoofing by Improper Validation.\n\nThis vulnerability is associated with program files lib/ex_aws/sns.ex, lib/ex_aws/sns/public_key_cache.ex and program routines 'Elixir.ExAws.SNS':verify_message/1, 'Elixir.ExAws.SNS.PublicKeyCache':get/1.\n\n'Elixir.ExAws.SNS':verify_message/1 fetches the signing certificate from the SigningCertURL field of the incoming SNS message without validating that the URL uses HTTPS or that the host matches an AWS-owned SNS certificate domain. An unauthenticated attacker who can POST to an endpoint that calls verify_message/1 can supply an attacker-controlled SigningCertURL, sign a forged SNS message with their own key, and cause the function to return :ok, completely bypassing SNS signature verification.\n\nThis issue affects ex_aws_sns: from 2.0.1 before 2.3.5."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-473",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-473 Signature Spoofing by Improper Validation"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "NETWORK",
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"baseScore": 8.7,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-295",
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"description": "CWE-295 Improper Certificate Validation",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"shortName": "EEF",
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"dateUpdated": "2026-05-29T04:40:43.232Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory",
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"related"
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],
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"url": "https://github.com/ex-aws/ex_aws_sns/security/advisories/GHSA-8jgf-23q5-x7xx"
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},
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{
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"tags": [
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"related"
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-47074.html"
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},
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{
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-47074"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/ex-aws/ex_aws_sns/commit/1853d280b152d10384a1e21a22cf22152a60be48"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": "ex_aws_sns SigningCertURL not validated in verify_message/1",
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-28T10:29:45.193313Z",
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"id": "CVE-2026-47074",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-05-28T10:31:15.111Z"
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}
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}
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]
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}
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} |