CVE-2026-89042 json
passport-saml-encrypted through 0.1.13 Authentication Bypass via Missing Signature Verification
published 2026-09-10 59 d ago modified 2026-09-11 58 d ago also EUVD-2026-75631
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by submitting unsigned SAML responses. Attackers can post forged SAML responses with arbitrary NameID and attributes to the assertion consumer service endpoint to receive authenticated profiles without valid signatures.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 58 d ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | 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 |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 9.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- krakenjs passport-saml-encrypted
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
github.com
/krakenjs/passport-saml-encrypted/issues/29
issue-tracking
-
github.com
/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L296
technical-description
-
github.com
/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L321
technical-description
-
github.com
/krakenjs/passport-saml-encrypted
product
-
vulncheck.com
/advisories/passport-saml-encrypted-through-0.1.13-authentication-bypass-via-missing-signature-verification
third-party-advisory
Sources
- CVE List CVE-2026-89042
- NVD CVE-2026-89042
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