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CVE-2026-15243 Improper Validation of Certificate in CAS Client

🗓️ 24 Jul 2026 11:29:26Reported by CERT-PLType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

Cas Client accepts any certificate trusted for whitelisted hostnames, enabling a man in the middle to steal TGT and service tickets.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-15243
24 Jul 202611:29
attackerkb
Circl
CVE-2026-15243
24 Jul 202612:15
circl
CVE
CVE-2026-15243
24 Jul 202611:29
cve
EUVD
EUVD-2026-48560
24 Jul 202611:29
euvd
NVD
CVE-2026-15243
24 Jul 202612:16
nvd
Positive Technologies
PT-2026-64277
24 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-15243 Improper Validation of Certificate in CAS Client
24 Jul 202611:29
vulnrichment
[
  {
    "vendor": "Apereo",
    "product": "Java Apereo CAS Client",
    "repo": "https://github.com/apereo/java-cas-client",
    "versions": [
      {
        "status": "affected",
        "version": "4.1.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Apereo",
    "product": "Jasig CAS Client",
    "collectionURL": "https://mvnrepository.com/",
    "packageName": "org.jasig.cas.client",
    "repo": "https://github.com/apereo/java-cas-client",
    "versions": [
      {
        "status": "affected",
        "version": "3.6.4"
      }
    ],
    "defaultStatus": "unknown"
  }
]

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