In Progress® Telerik® Report Server prior to version 12.3.26.1110, an external control of a system configuration
Source GCVE Database
Not known to be exploited · CVSS 8.8 High : upgrade to 12.3.26.1110 soon.
Data as of 11 Nov 2026, 19:47 UTC
Thin evidence
One scorer or none| CNA (ProgressSoftware) | CVSS 3.1 | 8.8 |
|---|
- Patch
- Available – fixed in 12.3.26.1110
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade Telerik Report Server to 12.3.26.1110.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Progress SoftwareTelerik Report Server | Affected
| Fixed in
|
AI-suggested
A fix is available in Telerik Report Server version 12.3.26.1110 and later. Users should upgrade to this version or later to remediate the vulnerability. No vendor advisory content was provided to indicate alternative mitigations or temporary workarounds. Until patched, users should exercise caution with links and notifications generated by the Report Server.
Description
A vulnerability in In Progress® Telerik® Report Server versions prior to 12.3.26.1110 allows an unauthenticated remote attacker to externally control a system configuration setting. This flaw enables the attacker to influence the server address used by the Report Server when generating links and notifications. Exploitation requires user interaction and can lead to sensitive information disclosure and account takeover.