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VulnerabilityPublished

CVE-2026-118670: OHIF Viewers · Cross-site Scripting

Affects OHIF ViewersSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High · fixed in 3.14.0-beta.19 : patch OHIF Viewers soon.

Data as of 6 Nov 2026, 17:39 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.18.8
Patch
Available – fixed in 3.14.0-beta.19, 3.13.7, 3.12.15
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 6 Nov 2026.

What to do

Upgrade Viewers and ohif/Viewers to 3.14.0-beta.19, 3.13.7 or 3.12.15.

Affected software

ProductAffectedFixed in
OHIFViewersAffected
  • >=3.14.0-beta.0 <3.14.0-beta.19
Fixed in
  • 3.14.0-beta.19
OHIFViewersAffected
  • >=3.13.0-beta.0 <3.13.7
Fixed in
  • 3.13.7
OHIFViewersAffected
  • >=3.5.0-beta.0 <3.12.15
Fixed in
  • 3.12.15
GitHubohif/Viewerspkg:github/ohif/ViewersOther threatsAffected
  • >=3.5.0-beta.0 <3.12.15
  • >=3.13.0-beta.0 <3.13.7
  • >=3.14.0-beta.0 <3.14.0-beta.19
Fixed in
  • 3.12.15
  • 3.13.7
  • 3.14.0-beta.19

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade OHIF Viewers to version 3.12.15, 3.13.7, or 3.14.0-beta.19 or later, where this vulnerability is fixed. No other specific mitigations are indicated by the vendor advisory.

Description

CVE-2026-118670 is a high-severity cross-site scripting (XSS) vulnerability in OHIF Viewers, a zero-footprint DICOM viewer. The flaw exists in the dicom-pdf extension versions from 3.5.0-beta.0 up to but not including 3.12.15, 3.13.7, and 3.14.0-beta.19. It allows an attacker to craft a malicious DICOM object with a manipulated MIMETypeOfEncapsulatedDocument, causing the application to treat attacker-controlled content as HTML with the OHIF origin. This enables script execution that can access session storage, authentication tokens, and same-origin PACS requests. The vulnerability is fixed in versions 3.12.15, 3.13.7, and 3.14.0-beta.19.

References

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