CVE-2026-46490
Description
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 escalation when attributes are used for authorization (roles/groups). This issue has been patched in version 2.13.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
samlifynpm | < 2.13.0 | 2.13.0 |
Affected products
2Patches
Vulnerability mechanics
References
3- github.com/tngan/samlify/security/advisories/GHSA-34r5-q4jw-r36mnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-34r5-q4jw-r36mghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-46490ghsaADVISORY
News mentions
0No linked articles in our index yet.