🛡️ CVE-2025-54369 — node-saml
Description
Node-SAML SAML Authentication Bypass
Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts that are verified when checking signature.
This allows an attacker to modify authentication details within a valid SAML assertion. For example, in one attack it is possible to remove any character from the SAML assertion username.
To conduct the attack an attacker would need a validly signed document from the identity provider (IdP).
In fixing this we upgraded xml-crypto to v6.1.2 and made sure to process the SAML assertions from only verified/authenticated contents. This will prevent future variants from coming up.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality high, integrity high, availability none.
Weakness class
CVE-2025-54369 is classified as CWE-287: Improper Authentication. The identity of the caller is not established correctly, so an attacker can act as another user.
Affected software
CVE-2025-54369 is recorded against 3 packages.
- @node-saml/node-saml
- node-saml
- unknown
Timeline and source
Published on 25 July 2025 and last revised on 16 December 2025. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)
Details
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| @node-saml/node-saml | — | — |
| node-saml | — | — |
| unknown | — | — |
References
Similar Threats
- Critical CVE-2025-54419
- Medium CVE-2023-40178
- High CVE-2022-39299
More CVE 2025 advisories
Browse all of CVE 2025 in the advisory index.
Exploit Protection
Are you running node-saml?
CVE-2025-54369 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.
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