# CVE-2026-87102: Acronis Cyber Protect token validation bypass

Source: https://junglewise.ai/threats/cve-2026-87102-sensitive-information-disclosure-and-manipulation-due-to-improper  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-28. Updated: 2026-10-28  
License: CC BY 4.0 with a link back

CVE-2026-87102 · Severity: high · CVSS 7.4 · Published 2026-10-28

Acronis Cyber Protect, an endpoint protection and disaster recovery platform, contains a flaw in how it validates security tokens. An attacker could exploit this to access sensitive information or manipulate system data without proper authorization, potentially leading to data theft or unauthorized changes to protected systems.

Technologies: [Acronis Cyber Protect](https://junglewise.ai/threats/technologies/cyber-protect). Vendors: [Acronis](https://junglewise.ai/threats/vendors/acronis).

## Quick answers

**Is CVE-2026-87102 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87102 being exploited in the wild.

**How severe is CVE-2026-87102?** High severity, with a CVSS score of 7.4, published 28 October 2026.

**Which products and versions are affected?** Acronis Cyber Protect 17 before build 42587 (Linux, Windows).

**Is there a fix for CVE-2026-87102?** Yes: fixed in Acronis Cyber Protect 17 build 42587. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-87102 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-87102?** Check whether you run Acronis Cyber Protect 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 Acronis Cyber Protect 17 build 42587

## Technical details

The vulnerability stems from improper token validation in Acronis Cyber Protect 17, allowing attackers to bypass authentication checks and access sensitive information or modify system state. The flaw affects both Linux and Windows deployments before build 42587. Exploitation requires network access to the affected system but does not require prior authentication or user interaction.

## Affected products

- Acronis Cyber Protect 17 before build 42587 (Linux, Windows)

## Timeline

- 2026-10-28: disclosed

## References

- [https://security-advisory.acronis.com/advisories/SEC-9813](https://security-advisory.acronis.com/advisories/SEC-9813)

## Related threats

- [Acronis Cyber Protect SSL certificate verification bypass](https://junglewise.ai/threats/cve-2026-87880-sensitive-information-disclosure-due-to-missing-ssl-certificate)
- [Acronis Cyber Protect information disclosure in token validation](https://junglewise.ai/threats/cve-2026-87879-sensitive-information-disclosure-due-to-improper-token-validation)
- [Acronis Cyber Protect executable stack attribute enabled](https://junglewise.ai/threats/cve-2026-87878-linux-binaries-have-executable-stack-attribute-enabled-the)
- [Acronis Cyber Protect token validation bypass](https://junglewise.ai/threats/cve-2026-87103-sensitive-information-disclosure-and-manipulation-due-to-improper)
- [Acronis Cyber Protect sensitive information disclosure in token validation](https://junglewise.ai/threats/cve-2026-87101-sensitive-information-disclosure-due-to-improper-token-validation)