CVE-2026-102603

Description

Gotify server is a simple server for sending and receiving messages in real-time per WebSocket. Prior to 3.0.0, the password change endpoint (POST /current/user/password) accepts a valid client token without requiring the account's current password or another elevated authentication step. An attacker who obtains a client token can set a new password for the associated user, taking control of password authentication and forcing account recovery through an administrator or direct database access. This issue is fixed in version 3.0.0.

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EPSS — Exploit Prediction

0.0034

Probability of exploitation

0.27%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-620 CWE-620

References

Other References

https://github.com/gotify/server/commit/a8744482c668e07a61798573ec8e17bd3f6009f9 https://github.com/gotify/server/pull/952 https://github.com/gotify/server/releases/tag/v3.0.0 https://github.com/gotify/server/security/advisories/GHSA-3hcj-9m7p-wwm9 https://github.com/gotify/server/security/advisories/GHSA-3hcj-9m7p-wwm9

Frequently Asked Questions

What is CVE-2026-102603? +

Gotify server is a simple server for sending and receiving messages in real-time per WebSocket. Prior to 3.0.0, the password change endpoint (POST /current/user/password) accepts a valid client token without requiring the account's current password or another elevated authentication step. An attacker who obtains a client token can set a new password for the associated user, taking control of password authentication and forcing account recovery through an administrator or direct database access. This issue is fixed in version 3.0.0.

How do I check if I'm vulnerable to CVE-2026-102603? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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