CVE-2021-39211 json
Disclosure of GLPI and server information in telemetry endpoint
published 5y ago modified 4mo ago also EUVD-2021-25589
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.5%
- EPSS 4.5% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
GLPI is a free Asset and IT management software package. Starting in version 9.2 and prior to version 9.5.6, the telemetry endpoint discloses GLPI and server information. This issue is fixed in version 9.5.6. As a workaround, remove the file `ajax/telemetry.php`, which is not needed for usual functions of GLPI.
Patch / fix
Is CVE-2021-39211 in your stack? 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
4.52% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Nuclei template GLPI 9.2/<9.5.6 - Information Disclosure nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- glpi-project glpi
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/glpi-project/glpi/releases/tag/9.5.6
release-notes, third-party-advisory
-
github.com
/glpi-project/glpi/security/advisories/GHSA-xx66-v3g5-w825
third-party-advisory
Sources
- CVE List CVE-2021-39211
- NVD CVE-2021-39211
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