CVE-2023-40343 json
Jenkins Tuleap Authentication Plugin non-constant time token comparison
published 2023-08-16 3 y ago modified 2026-06-17 4 mo ago also GHSA-5r33-mgjf-6656 , EUVD-2023-2218
- cvss
- 5.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
Jenkins Tuleap Authentication Plugin 1.1.20 and earlier uses a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication token.
Patch / fix
- maven io.jenkins.plugins:tuleap-oauth 1.1.21
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | io.jenkins.plugins:tuleap-oauth | <1.1.21 |
1.1.21 |
Affected products
- Jenkins Project Jenkins Tuleap Authentication Plugin
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
-
jenkins.io
/security/advisory/2023-08-16/#SECURITY-3229
vendor-advisory, web
-
openwall.com
/lists/oss-security/2023/08/16/3
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-40343
advisory
Sources
- CVE List CVE-2023-40343
- GitHub Advisory GHSA-5r33-mgjf-6656
- NVD CVE-2023-40343
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