CVE-2026-9095 (GCVE-0-2026-9095)
Vulnerability from cvelistv5 – Published: 2026-05-28 16:25 – Updated: 2026-05-28 17:07
VLAI?
Title
CVE-2026-9095
Summary
Casdoor versions 2.362.0 and earlier map SAML assertions to user sessions without replay protection. The ParseSamlResponse() function in object/saml_sp.go calls sp.RetrieveAssertionInfo() and immediately maps the result to a user session. There is no assertion ID cache, OneTimeUse condition enforcement, or replay detection anywhere in the SAML SP code path. As a result, an attacker can replay a previously captured SAML assertion to obtain an authenticated session for the assertion’s subject, including administrator accounts, without needing the user’s password or MFA credentials.
Severity ?
8.1 (High)
Assigner
References
| URL | Tags | |
|---|---|---|
{
"containers": {
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"metrics": [
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"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"id": "CVE-2026-9095",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
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{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-28T17:07:35.384837Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
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"descriptions": [
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"cweId": "CWE-294",
"description": "CWE-294 Authentication Bypass by Capture-replay",
"lang": "en",
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"providerMetadata": {
"dateUpdated": "2026-05-28T17:07:58.870Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Casdoor",
"vendor": "Casdoor",
"versions": [
{
"lessThanOrEqual": "2.362.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
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"value": "Casdoor versions 2.362.0 and earlier map SAML assertions to user sessions without replay protection. The ParseSamlResponse() function in object/saml_sp.go calls sp.RetrieveAssertionInfo() and immediately maps the result to a user session. There is no assertion ID cache, OneTimeUse condition enforcement, or replay detection anywhere in the SAML SP code path. As a result, an attacker can replay a previously captured SAML assertion to obtain an authenticated session for the assertion\u2019s subject, including administrator accounts, without needing the user\u2019s password or MFA credentials."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-294 Authentication Bypass by Capture-replay",
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"providerMetadata": {
"dateUpdated": "2026-05-28T16:25:17.364Z",
"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc"
},
"references": [
{
"url": "https://kb.cert.org/vuls/id/780781"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "CVE-2026-9095",
"x_generator": {
"engine": "VINCE 3.0.41",
"env": "prod",
"origin": "https://cveawg.mitre.org/api/cve/CVE-2026-9095"
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"cveMetadata": {
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"assignerShortName": "certcc",
"cveId": "CVE-2026-9095",
"datePublished": "2026-05-28T16:25:17.364Z",
"dateReserved": "2026-05-20T15:04:41.651Z",
"dateUpdated": "2026-05-28T17:07:58.870Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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