# CVE-2026-20994: Samsung Account URL redirection and token theft

Source: https://junglewise.ai/threats/cve-2026-20994-samsung-account-url-redirection-and-token-theft  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-16. Updated: 2026-05-20  
License: CC BY 4.0 with a link back

CVE-2026-20994 · Severity: info · CVSS 6.9 · Published 2026-03-16

Samsung Account is a service used on Samsung devices to manage user profiles, sync data, and provide access to various Samsung services. A security flaw in versions prior to 15.5.01.1 could allow a malicious application installed on the same device to redirect web traffic and potentially steal the user's account access token. This could lead to unauthorized access to the user's personal account data and linked services.

Technologies: [Samsung Account](https://junglewise.ai/threats/technologies/account). Vendors: [Samsung](https://junglewise.ai/threats/vendors/samsung).

## Quick answers

**Is CVE-2026-20994 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-20994 being exploited in the wild.

**How severe is CVE-2026-20994?** Informational severity, with a CVSS score of 6.9, published 16 March 2026.

**Which products and versions are affected?** Samsung Account prior to 15.5.01.1.

**Is there a fix for CVE-2026-20994?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-20994 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-20994?** Check whether you run Samsung Account 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.

## Technical details

An open redirect vulnerability (CWE-601) exists in the Samsung Account application due to insufficient URL validation. A local attacker (e.g., a malicious app on the device) can exploit this by triggering a redirection to an untrusted site. This redirection can be leveraged to intercept sensitive account access tokens. The vulnerability was addressed in version 15.5.01.1 by implementing proper URL validation logic. While initially reported as a remote issue, the advisory was updated to clarify that the attack vector is local.

## Affected products

- Samsung Samsung Account prior to 15.5.01.1

## Timeline

- 2026-03-03: advisory: Initial bulletin published by Samsung Mobile Security
- 2026-03-16: disclosed: CVE published to NVD
- 2026-05-20: other: Advisory updated to change attack vector from remote to local

## References

- [https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=03](https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=03)

## Related threats

- [Samsung Account improper export of Android application components](https://junglewise.ai/threats/cve-2026-21127-improper-export-of-android-application-components-in-samsung)
- [Improper input validation in Samsung Account prior to version 15.5.01.1 allows local attacker to execute arbitrary script.](https://junglewise.ai/threats/cve-2025-58486-improper-input-validation-in-samsung-account-prior-to-version-15)
- [Improper handling of insufficient permissions or privileges in Samsung Account prior to version 15.5.00.18 allows…](https://junglewise.ai/threats/cve-2025-21076-improper-handling-of-insufficient-permissions-or-privileges-in)