Quick answers
- Is CVE-2026-5303 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-5303 being exploited in the wild.
- How severe is CVE-2026-5303?
- Medium severity, with a CVSS score of 5.7, published 11 August 2026.
- Which products and versions are affected?
- Axis ACAP framework.
- Is there a fix for CVE-2026-5303?
- 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-2026-5303 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-5303?
- Check whether you run Axis ACAP framework. 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
The vulnerability is a classic Time-of-Check to Time-of-Use (TOCTOU) race condition in the ACAP framework's permission validation logic. An attacker can modify application files or permissions between the security check and the actual application execution, potentially gaining elevated privileges on the device. Exploitation requires: (1) the target device configured to allow unsigned ACAP applications, and (2) the user to be socially engineered into installing a malicious ACAP application. The attack window is narrow and race-condition dependent, making reliable exploitation difficult. A patch from Axis should be available to address the race condition.
Affected products
- Axis ACAP framework
Timeline
- 2026-08-11: disclosed