CVE-2026-89043
High
Description
passport-saml-encrypted through 0.1.13 contains an XML signature wrapping vulnerability where signature verification and assertion extraction use independent XPath lookups with no cross-validation. Attackers holding any validly signed SAML message can prepend a forged unsigned assertion that gets accepted as the verified identity while the genuine signature validates against the original assertion.
SeverityHigh
CVSS7.4
Exploit probability—
ProductKrakenjs Passport-saml-encrypted
PublishedSep 10, 2026
First seenSep 10, 2026
Weakness typeCWE-347CWE-347
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| krakenjs passport-saml-encrypted | v ≤ 0.1.13 | — |
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