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CVE-2026-19646VulnerabilityPublished

CVE-2026-19646: IBM Common Licensing · SEC

Affects IBM Common LicensingSource CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
IBMCommon LicensingAffected
  • =Agent 9.0
  • =Agent 9.0.0.1
  • =Agent 9.0.0.2
  • =ART 9.0
  • =ART 9.0.0.1
  • =ART 9.0.0.2
Fixed in–

CPE configurations (2)

  • cpe:2.3:a:ibm:common_licensing:agent:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:common_licensing:art:*:*:*:*:*:*:*

AI-suggested

Until a fix is available, consider restricting or validating HTTP Host headers at network or application layers if feasible.

Description

IBM Common Licensing versions 9.0, 9.0.0.1, 9.0.0.2, and ART 9.0 series contain a vulnerability that allows remote attackers to redirect users to arbitrary domains. This occurs due to improper validation of the HTTP Host header, which can be exploited without authentication or user interaction. The vulnerability has a high CVSS score of 9.1, indicating critical severity with high impact on confidentiality and integrity but no impact on availability.

References

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