Quick answers
- Is CVE-2026-82978 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-82978 being exploited in the wild.
- How severe is CVE-2026-82978?
- Medium severity, with a CVSS score of 4.3, published 11 November 2026.
- Which products and versions are affected?
- Revive Adserver 6.0.8 and earlier.
- Is there a fix for CVE-2026-82978?
- Yes: fixed in 6.0.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-82978 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-82978?
- Check whether you run Revive Adserver 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: 6.0.9
Technical details
An authorization bypass in channel-edit.php stems from the server trusting a submitted agencyid parameter rather than deriving it from the authenticated user's account context. An authenticated manager-level user can modify the agencyid form field to create delivery rule sets in another agency's account. The fix in version 6.0.9 obtains the agency identifier from the authenticated session rather than form data.
Affected products
- Revive Adserver 6.0.8 and earlier
Timeline
- 2026-11-11: disclosed