171 lines
7.3 KiB
JSON
171 lines
7.3 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-2026-33173",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-03-17T22:16:36.719Z",
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"datePublished": "2026-03-23T23:21:29.843Z",
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"dateUpdated": "2026-03-24T15:12:50.569Z"
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},
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"containers": {
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"cna": {
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"title": "Rails Active Storage has possible content type bypass via metadata in direct uploads",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-925",
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"lang": "en",
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"description": "CWE-925: Improper Verification of Intent by Broadcast Receiver",
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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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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/rails/rails/security/advisories/GHSA-qcfx-2mfw-w4cg",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/rails/rails/security/advisories/GHSA-qcfx-2mfw-w4cg"
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},
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{
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"name": "https://github.com/rails/rails/commit/707c0f1f41f067fdf96d54e99d43b28dfaae7e53",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rails/rails/commit/707c0f1f41f067fdf96d54e99d43b28dfaae7e53"
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},
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{
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"name": "https://github.com/rails/rails/commit/8fcb934caadc79c8cc4ce53287046d0f67005b3e",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rails/rails/commit/8fcb934caadc79c8cc4ce53287046d0f67005b3e"
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},
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{
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"name": "https://github.com/rails/rails/commit/d9502f5214e2198245a4c1defe9cd02a7c8057d0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rails/rails/commit/d9502f5214e2198245a4c1defe9cd02a7c8057d0"
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},
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{
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"name": "https://github.com/rails/rails/releases/tag/v7.2.3.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rails/rails/releases/tag/v7.2.3.1"
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},
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{
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"name": "https://github.com/rails/rails/releases/tag/v8.0.4.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rails/rails/releases/tag/v8.0.4.1"
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},
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{
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"name": "https://github.com/rails/rails/releases/tag/v8.1.2.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rails/rails/releases/tag/v8.1.2.1"
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}
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],
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"affected": [
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{
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"vendor": "rails",
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"product": "activestorage",
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"versions": [
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{
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"version": ">= 8.1.0.beta1, < 8.1.2.1",
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"status": "affected"
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},
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{
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"version": ">= 8.0.0.beta1, < 8.0.4.1",
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"status": "affected"
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},
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{
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"version": "< 7.2.3.1",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-03-23T23:21:29.843Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, `DirectUploadsController` accepts arbitrary metadata from the client and persists it on the blob. Because internal flags like `identified` and `analyzed` are stored in the same metadata hash, a direct-upload client can set these flags to skip MIME detection and analysis. This allows an attacker to upload arbitrary content while claiming a safe `content_type`, bypassing any validations that rely on Active Storage's automatic content type identification. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch."
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}
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],
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"source": {
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"advisory": "GHSA-qcfx-2mfw-w4cg",
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"discovery": "UNKNOWN"
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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": "2026-03-24T14:14:22.499615Z",
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"id": "CVE-2026-33173",
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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": "no"
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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": "2026-03-24T15:12:50.569Z"
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}
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}
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]
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}
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} |