132 lines
5.5 KiB
JSON
132 lines
5.5 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-2026-34840",
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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": "2026-03-30T20:52:53.284Z",
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"datePublished": "2026-04-02T18:52:48.274Z",
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"dateUpdated": "2026-04-02T20:20:13.291Z"
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},
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"containers": {
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"cna": {
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"title": "OneUptime SSO: Multi-Assertion Identity Injection via Decoupled Signature Verification",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-347",
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"lang": "en",
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"description": "CWE-347: Improper Verification of Cryptographic Signature",
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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": 8.1,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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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:L/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/OneUptime/oneuptime/security/advisories/GHSA-5w5c-766x-265g",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/OneUptime/oneuptime/security/advisories/GHSA-5w5c-766x-265g"
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},
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{
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"name": "https://github.com/OneUptime/oneuptime/commit/2fd7ede52f60444710628d6c1b34dee2ef9e57d1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/OneUptime/oneuptime/commit/2fd7ede52f60444710628d6c1b34dee2ef9e57d1"
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},
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{
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"name": "https://github.com/OneUptime/oneuptime/releases/tag/10.0.42",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/OneUptime/oneuptime/releases/tag/10.0.42"
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}
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],
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"affected": [
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{
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"vendor": "OneUptime",
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"product": "oneuptime",
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"versions": [
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{
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"version": "< 10.0.42",
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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": "2026-04-02T18:52:48.274Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.42, OneUptime's SAML SSO implementation (App/FeatureSet/Identity/Utils/SSO.ts) has decoupled signature verification and identity extraction. isSignatureValid() verifies the first <Signature> element in the XML DOM using xml-crypto, while getEmail() always reads from assertion[0] via xml2js. An attacker can prepend an unsigned assertion containing an arbitrary identity before a legitimately signed assertion, resulting in authentication bypass. This issue has been patched in version 10.0.42."
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}
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],
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"source": {
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"advisory": "GHSA-5w5c-766x-265g",
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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": "2026-04-02T20:20:03.529115Z",
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"id": "CVE-2026-34840",
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"options": [
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{
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"Exploitation": "poc"
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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": "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": "2026-04-02T20:20:13.291Z"
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}
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}
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]
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}
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} |