172 lines
7.1 KiB
JSON
172 lines
7.1 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-2026-53512",
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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": "2026-06-09T17:30:33.455Z",
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"datePublished": "2026-07-15T17:18:09.512Z",
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"dateUpdated": "2026-07-18T01:08:08.419Z"
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},
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"containers": {
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"cna": {
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"title": "Better Auth: OAuth refresh-token replay via missing client authentication on oidc-provider and mcp plugins",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-287",
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"lang": "en",
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"description": "CWE-287: Improper Authentication",
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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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"descriptions": [
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{
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"cweId": "CWE-306",
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"lang": "en",
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"description": "CWE-306: Missing Authentication for Critical Function",
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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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"descriptions": [
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{
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"cweId": "CWE-345",
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"lang": "en",
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"description": "CWE-345: Insufficient Verification of Data Authenticity",
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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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"descriptions": [
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{
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"cweId": "CWE-863",
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"lang": "en",
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"description": "CWE-863: Incorrect Authorization",
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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": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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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": 9.1,
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"baseSeverity": "CRITICAL",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/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/better-auth/better-auth/security/advisories/GHSA-pw9m-5jxm-xr6h",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/better-auth/better-auth/security/advisories/GHSA-pw9m-5jxm-xr6h"
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},
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{
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"name": "https://github.com/better-auth/better-auth/pull/9576",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/better-auth/better-auth/pull/9576"
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},
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{
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"name": "https://github.com/better-auth/better-auth/commit/1f2ff4215c4affff0b140b0c0a712c0dde35659c",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/better-auth/better-auth/commit/1f2ff4215c4affff0b140b0c0a712c0dde35659c"
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},
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{
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"name": "https://github.com/better-auth/better-auth/releases/tag/v1.6.11",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/better-auth/better-auth/releases/tag/v1.6.11"
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}
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],
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"affected": [
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{
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"vendor": "better-auth",
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"product": "better-auth",
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"versions": [
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{
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"version": "< 1.6.11",
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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": "2026-07-15T17:18:09.512Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, the legacy oidcProvider and mcp plugins expose OAuth token endpoints whose refresh_token grant authenticates only possession of the bound refreshToken row and matching client_id, without verifying the confidential client's client_secret, allowing an attacker with a valid refresh_token to mint access tokens and rotated refresh tokens through /api/auth/oauth2/token or /api/auth/mcp/token. The @better-auth/oauth-provider package is not affected. This issue is fixed in version 1.6.11."
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}
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],
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"source": {
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"advisory": "GHSA-pw9m-5jxm-xr6h",
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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": "2026-07-18T01:07:56.612326Z",
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"id": "CVE-2026-53512",
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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": "total"
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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": "2026-07-18T01:08:08.419Z"
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}
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}
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]
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}
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} |