# CVE-2026-21117: Samsung CocktailBarService improper access control

Source: https://junglewise.ai/threats/cve-2026-21117-improper-access-control-in-cocktailbarservice-prior-to-smr-oct  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-21117 · Severity: info · Published 2026-10-12

CocktailBarService is a Samsung mobile service component that manages system functionality. An improper access control vulnerability allows local attackers to read sensitive information they should not have access to. This affects Samsung devices running firmware prior to the October 2026 release.

Technologies: [Samsung Android firmware](https://junglewise.ai/threats/technologies/android-firmware). Vendors: [Samsung](https://junglewise.ai/threats/vendors/samsung).

## Quick answers

**Is CVE-2026-21117 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-21117 being exploited in the wild.

**How severe is CVE-2026-21117?** Informational severity, published 12 October 2026.

**Which products and versions are affected?** Samsung Android firmware prior to SMR Oct-2026 Release 1.

**Is there a fix for CVE-2026-21117?** Yes: fixed in SMR Oct-2026 Release 1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-21117 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-21117?** Check whether you run Samsung Android firmware 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 SMR Oct-2026 Release 1

## Technical details

Improper access control in CocktailBarService fails to restrict access to sensitive data, allowing local attackers to access information without proper authentication or permissions. The vulnerability requires local access to the affected device. A fix is available in Samsung's SMR October 2026 Release 1 firmware.

## Affected products

- Samsung Android firmware prior to SMR Oct-2026 Release 1

## Timeline

- 2026-10-12: disclosed

## References

- [https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10](https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10)

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- [Samsung lib_sag_ai_sound_sep out-of-bounds memory access](https://junglewise.ai/threats/cve-2026-21119-out-of-bounds-read-and-write-in-lib-sag-ai-sound-sep-v2-00-so)
- [Samsung libcodec2secevrcdec out-of-bounds write](https://junglewise.ai/threats/cve-2026-21091-samsung-libcodec2secevrcdec-out-of-bounds-write)