125 lines
5.4 KiB
JSON
125 lines
5.4 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-2026-34457",
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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": "2026-03-27T18:18:14.895Z",
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"datePublished": "2026-04-14T22:14:38.937Z",
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"dateUpdated": "2026-04-15T17:43:30.711Z"
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},
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"containers": {
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"cna": {
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"title": "OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-290",
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"lang": "en",
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"description": "CWE-290: Authentication Bypass by Spoofing",
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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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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 9.1,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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"version": "3.1"
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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/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-5hvv-m4w4-gf6v",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-5hvv-m4w4-gf6v"
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},
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{
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"name": "https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.15.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.15.2"
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}
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],
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"affected": [
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{
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"vendor": "oauth2-proxy",
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"product": "oauth2-proxy",
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"versions": [
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{
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"version": "< 7.15.2",
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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": "2026-04-14T22:14:38.937Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an auth_request-style integration (such as nginx auth_request) and either --ping-user-agent is set or --gcp-healthchecks is enabled. In affected configurations, OAuth2 Proxy treats any request with the configured health check User-Agent value as a successful health check regardless of the requested path, allowing an unauthenticated remote attacker to bypass authentication and access protected upstream resources. Deployments that do not use auth_request-style subrequests or that do not enable --ping-user-agent/--gcp-healthchecks are not affected. This issue is fixed in 7.15.2."
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}
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],
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"source": {
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"advisory": "GHSA-5hvv-m4w4-gf6v",
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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": "2026-04-15T17:43:23.417901Z",
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"id": "CVE-2026-34457",
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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": "2026-04-15T17:43:30.711Z"
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}
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}
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]
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}
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} |