Quick answers
- Is CVE-2026-41582 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-41582 being exploited in the wild.
- How severe is CVE-2026-41582?
- High severity, with a CVSS score of 7.5, published 16 October 2026.
- Which products and versions are affected?
- Countly-Server before 24.05.50 and before 25.03.44.
- Is there a fix for CVE-2026-41582?
- Yes: fixed in 24.05.50, 25.03.44. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-41582 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-41582?
- Check whether you run Countly-Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 24.05.50, 25.03.44
Technical details
Multiple image and screenshot routes in countly-server (including /appimages/*, /memberimages/*, /star-rating/images/*, and /dashboards/images/screenshots/*) fail to validate or sanitize wildcard path components, allowing directory traversal via sequences like ../ to reach the filesystem. When deployments use the local filesystem backend, attackers can traverse to arbitrary readable server files through the getStats and getStream functions in api/utils/countlyFs.js. This requires no authentication and can be exploited remotely.
Affected products
- Countly countly-server before 24.05.50 and before 25.03.44
Timeline
- 2026-10-16: disclosed