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CVE-2026-49283 SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass

🗓️ 19 Aug 2026 14:47:05Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass in SAML2 library.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-49283
19 Aug 202614:47
cve
debiancve
Debian CVE
CVE-2026-49283
19 Aug 202614:47
debiancve
euvd
EUVD
EUVD-2026-62502
19 Aug 202614:47
euvd
github
Github Security Blog
SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass
2 Jul 202620:25
github
nvd
NVD
CVE-2026-49283
19 Aug 202615:17
nvd
osv
OSV
DEBIAN-CVE-2026-49283
19 Aug 202615:17
osv
osv
OSV
GHSA-6929-8P9F-26JX SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass
2 Jul 202620:25
osv
osv
OSV
UBUNTU-CVE-2026-49283
19 Aug 202615:17
osv
ptsecurity
Positive Technologies
PT-2026-55452
2 Jul 202600:00
ptsecurity
snyk
Snyk
Improper Certificate Validation
2 Jul 202620:25
snyk
Rows per page
[
  {
    "vendor": "simplesamlphp",
    "product": "saml2",
    "versions": [
      {
        "version": "< 4.19.3",
        "status": "affected"
      },
      {
        "version": ">= 4.20.0, < 4.20.2",
        "status": "affected"
      },
      {
        "version": ">= 5.0.0, < 5.0.6",
        "status": "affected"
      },
      {
        "version": ">= 6.0.0, < 6.2.1",
        "status": "affected"
      }
    ]
  }
]

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