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CVE-2026-46490

samlify is a Node.js library for SAML single sign-on. Prior to version 2.13.0, samlify’s template substitution only escapes attribute contexts. Values inserted into element text (e.g., <saml:AttributeValue>) are not escaped. A normal user can inject XML markup into an attribute value (e.g., email, name) and add new <saml:Attribute> elements inside the signed assertion. The IdP then signs the tampered assertion and the SP accepts the injected attributes as trusted. This allows privilege escalatio
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:771c329667bdd4c43e808eae0efb712a25733a47032eebc31b5537ac013aee94
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"samlify","vendor":"tngan","versions":[{"status":"affected","version":"< 2.13.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad2620f67f92bf4e0b48297558270f44f211b531b09290702a397894d7526cdc · sha256:b480ea6640f37f68… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ad2620f67f92bf4e0b48297558270f44f211b531b09290702a397894d7526cdc · sha256:b480ea6640f37f68… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-91","description":"CWE-91: XML Injection (aka Blind XPath Injection)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ad2620f67f92bf4e0b48297558270f44f211b531b09290702a397894d7526cdc · sha256:b480ea6640f37f68… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/tngan/samlify/security/advisories/GHSA-34r5-q4jw-r36m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/tngan/samlify/security/advisories/GHSA-34r5-q4jw-r36m"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad2620f67f92bf4e0b48297558270f44f211b531b09290702a397894d7526cdc · sha256:b480ea6640f37f68… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/tngan/samlify/security/advisories/GHSA-34r5-q4jw-r36m"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad2620f67f92bf4e0b48297558270f44f211b531b09290702a397894d7526cdc · sha256:b480ea6640f37f68… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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