# CVE-2026-102603: Gotify password change endpoint missing verification

Source: https://junglewise.ai/threats/cve-2026-102603-gotify-insufficiently-protected-password-change-endpoint  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-15  
License: CC BY 4.0 with a link back

CVE-2026-102603 · Severity: medium · CVSS 4 · Published 2026-10-13

Gotify, a push notification server, has a vulnerability in its password change feature that allows attackers with a valid client token to change a user's password without knowing the current password. An attacker who obtains a client token can hijack accounts, forcing administrators to manually recover them or reset the database. This is a privilege escalation risk for multi-user deployments.

Technologies: [github.com/gotify/server (Go)](https://junglewise.ai/threats/technologies/github-com-gotify-server), [github.com/gotify/server/v2 (Go)](https://junglewise.ai/threats/technologies/github-com-gotify-server-v2). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-102603 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102603 being exploited in the wild.

**How severe is CVE-2026-102603?** Medium severity, with a CVSS score of 4, published 13 October 2026.

**Which products and versions are affected?** github.com/gotify/server (Go) SEMVER:introduced=0; github.com/gotify/server/v2 (Go) <= 2.9.1, SEMVER:introduced=0, SEMVER:introduced=0,last_affected=2.9.1; github.com/gotify/server/v3 (Go) < 3.0.0, SEMVER:introduced=0,fixed=3.0.0; Gotify Server <= 2.9.1.

**Is there a fix for CVE-2026-102603?** Yes. github.com/gotify/server/v3 (Go): upgrade to 3.0.0 or later. Until then: Restrict network access to state-changing endpoints under /user and /current/user to trusted networks only, or upgrade to version 3.0.0 which requires step-up authentication (re-entering the account password) to change the password. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-102603 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-102603?** Check whether you run github.com/gotify/server (Go), github.com/gotify/server/v2 (Go), github.com/gotify/server/v3 (Go) or one of the others listed 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

- github.com/gotify/server/v3 (Go): upgrade to 3.0.0 or later

  ```sh
  go get github.com/gotify/server/v3@v3.0.0
  ```


Restrict network access to state-changing endpoints under /user and /current/user to trusted networks only, or upgrade to version 3.0.0 which requires step-up authentication (re-entering the account password) to change the password.

## Technical details

The POST /current/user/password endpoint in Gotify versions ≤ 2.9.1 does not require the current password to be provided during password changes, requiring only a valid client token (CWE-620: Unverified Password Change). An attacker with a stolen or leaked token can change the target user's password without additional authentication, causing account lockout and requiring admin intervention to recover access.

## Affected products

- Gotify server <= 2.9.1

## Identifiers

- CVE-2026-102603
- GHSA-3hcj-9m7p-wwm9
- GO-2026-6772

## Timeline

- 2026-07-24: disclosed
- 2026-10-15: advisory
- 2026-10-15: patched: Patched in v3.0.0

## References

- [https://api.github.com/users/scumfrog](https://api.github.com/users/scumfrog)

## Related threats

- [GO-2022-1208 - gotify/server vulnerable to Cross-site Scripting in the application image file upload in github.com/gotify/server](https://junglewise.ai/threats/cve-2022-46181-gotify-server-vulnerable-to-cross-site-scripting-in-the)
- [GO-2023-1471 - Reflected XSS in Gotify's /docs via import of outdated Swagger UI in github.com/gotify/server](https://junglewise.ai/threats/go-2023-1471-reflected-xss-in-gotify-s-docs-via-import-of-outdated-49d6c92a)
- [Reflected XSS in Gotify's /docs via import of outdated Swagger UI](https://junglewise.ai/threats/reflected-xss-in-gotify-s-docs-via-import-of-outdated-swagger-ui-29b43f30)