CVE-2021-43834 json
Incorrect Authentication in elabftw
published 2021-12-15 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-30713
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
eLabFTW is an electronic lab notebook manager for research teams. In versions prior to 4.2.0 there is a vulnerability which allows an attacker to authenticate as an existing user, if that user was created using a single sign-on authentication option such as LDAP or SAML. It impacts instances where LDAP or SAML is used for authentication instead of the (default) local password mechanism. Users should upgrade to at least version 4.2.0.
Patch / fix
Exploit prediction
1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- elabftw elabftw
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/elabftw/elabftw/releases/tag/4.2.0
release-notes, third-party-advisory
-
github.com
/elabftw/elabftw/security/advisories/GHSA-98rp-gx76-33ph
third-party-advisory
Sources
- CVE List CVE-2021-43834
- NVD CVE-2021-43834
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