CVE-2019-12887 json
LinOTP replay vulnerability with auto resynchronization enabled for TOTP token
published 7y ago modified 4mo ago also GHSA-rqg8-xjp2-pg9w , PYSEC-2019-103 , EUVD-2019-0076
- cvss
- 8.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
KeyIdentity LinOTP before 2.10.5.3 has Incorrect Access Control (issue 1 of 2).
Patch / fix
Is CVE-2019-12887 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | linotp | <2.11.1 |
2.11.1 |
Classification
- Weakness
-
- CWE-294 Authentication Bypass by Capture-replay
References
-
github.com
/LinOTP/LinOTP/commit/6d28d93af59d2ce0d844a6a3282148064efc6ad8
web
-
linotp.org
/CVE-2019-12887.txt
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-12887
advisory
-
github.com
/LinOTP/LinOTP
package
-
github.com
/pypa/advisory-database/tree/main/vulns/linotp/PYSEC-2019-103.yaml
web
-
linotp.org
/linotp-hotfix-autoresync.html
web
-
github.com
/advisories/GHSA-rqg8-xjp2-pg9w
advisory
Sources
- CVE List CVE-2019-12887
- GitHub Advisory GHSA-rqg8-xjp2-pg9w
- NVD CVE-2019-12887
- OSV PYSEC-2019-103
Fencer Intel 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.