CVE-2026-118040: Progress Software Telerik Document Processing Libraries · Improper Verification of Cryptographic Signature
Affects Progress Software Telerik Document Processing LibrariesSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 2026.3.1027 soon.
Data as of 28 Oct 2026, 12:57 UTC
- Patch
- Available – fixed in 2026.3.1027
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade Telerik Document Processing Libraries and telerik.documentprocessinglibraries to 2026.3.1027.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Progress SoftwareTelerik Document Processing Libraries | Affected
| Fixed in
|
NuGettelerik.documentprocessinglibrariespkg:nuget/telerik.documentprocessinglibrariesOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to version 2026.3.1027 or later of Progress Telerik Document Processing Libraries, where this vulnerability has been fixed. No other mitigation is indicated or required as the vendor has provided an official fix.
Description
A vulnerability in Progress Telerik Document Processing Libraries prior to version 2026.3.1027 allows improper verification of cryptographic signatures and certificate validation in RadPdfProcessing. This flaw enables an unauthenticated attacker to craft a signed PDF document that causes the signature validation to incorrectly report forged content as unmodified and the signing certificate as valid.