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CVE-2026-49289: SimpleSAMLphp has Possible DoS via XPath Transform

high Affects simplesamlphp/saml2, simplesamlphp/saml2-legacy. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

SimpleSAMLphp has Possible DoS via XPath Transform

Package
simplesamlphp/saml2 Composer
Affected versions
>=4.20.0 and <4.20.3 or <4.19.3
Fixed in
4.20.3, 4.19.3
Severity
high  CVSS 7.5
Exploitation
not on CISA KEV · EPSS 1% (56.0th percentile)
Published
2026-07-02
Source
osv.dev

References

SimpleSAMLphp has Possible DoS via XPath Transform

Package
simplesamlphp/saml2-legacy Composer
Affected versions
>=4.20.0 and <4.20.3 or <4.19.3
Fixed in
4.20.3, 4.19.3
Severity
high  CVSS 7.5
Exploitation
not on CISA KEV · EPSS 1% (56.0th percentile)
Published
2026-07-02
Source
osv.dev

References

CWE-400
NVD recordsimplesamlphp/saml2 advisoriessimplesamlphp/saml2-legacy advisories

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