CVE-2017-1000452 json
Samlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames
published 2018-01-02 8 y ago modified 2026-06-17 4 mo ago also GHSA-8jjf-w7j6-323c , EUVD-2018-0156
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
An XML Signature Wrapping vulnerability exists in Samlify 2.2.0 and earlier, and in predecessor Express-saml2 which could allow attackers to impersonate arbitrary users.
Patch / fix
- npm samlify 2.4.0-rc5
Exploit prediction
1.38% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.0 | AV:N/AC:M/Au:S/C:P/I:P/A:P |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | samlify | <2.4.0-rc5 |
2.4.0-rc5 |
Classification
References
-
github.com
/tngan/samlify/releases/tag/v2.3.0
issue-tracking, patch, release-notes, third-party-advisory
-
github.com
/tngan/samlify/commit/d382bbc7c6b8ea889839ae1f178730c25b09eb42
web
-
whitehats.nl
/blog/xml-signature-wrapping-samlify
web, mitigation, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2017-1000452
advisory
-
hackerone.com
/reports/356284
web
-
github.com
/tngan/samlify
package
-
github.com
/tngan/samlify/compare/v2.4.0-rc4...v2.4.0-rc5
web
-
github.com
/tngan/samlify/releases/tag/v2.4.0-rc5
web
Sources
- CVE List CVE-2017-1000452
- GitHub Advisory GHSA-8jjf-w7j6-323c
- NVD CVE-2017-1000452
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.