What’s Vulnerable › Vulnerabilities

CVE-2026-41582: countly-server: Unauthenticated Path Traversal via Public Image and Screenshot Routes Leads to Read Internal Files

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-16 · updated 2026-10-19
• Weakness: CWE-22

Description

countly-server is the server-side part of Countly, a product analytics solution. Prior to 24.05.50 and 25.03.44, public image and screenshot routes implemented in frontend/express/app.js, plugins/star-rating/frontend/app.js, and plugins/dashboards/frontend/app.js concatenate attacker-controlled wildcard paths without containment validation. On deployments using the local filesystem backend, an unauthenticated request can traverse outside the intended asset directories and reach getStats or getStream in api/utils/countlyFs.js, allowing arbitrary readable server files to be disclosed. The affected routes include /appimages/*, /memberimages/*, */screenshots/*, /star-rating/images/*, and /dashboards/images/screenshots/*. This issue is fixed in versions 24.05.50 and 25.03.44.

Affected products

• countly-server: before 24.05.50; from 25.03, < 25.03.44

References

• https://github.com/Countly/countly-server/commit/405cb229ed37c744f6d61c42bf86fee5a7ee3530
• https://github.com/Countly/countly-server/commit/8004d29d3c789b70a79bf6e0380f0d546dbf42a9
• https://github.com/Countly/countly-server/releases/tag/24.05.50
• https://github.com/Countly/countly-server/releases/tag/25.03.44
• https://github.com/Countly/countly-server/security/advisories/GHSA-fqgp-6rm9-8696
• https://github.com/Countly/countly-server/security/advisories/GHSA-fqgp-6rm9-8696

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