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CVE-2026-105459VulnerabilityPublished

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow an attacker to gain unauthorized

Source GCVE Database

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Authoritative record:CVE-2026-105459· Medium 6.8

Not known to be exploited · CVSS 6.8 Medium.

Data as of 7 Nov 2026, 08:48 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (ibm)CVSS 3.16.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 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

Affected software

ProductAffectedFixed in
IBMAPI ConnectAffected
  • >=12.1.0.0 <=12.1.1.2
  • >=10.0.8.0 <=10.0.8.12
Fixed in–

AI-suggested

Until a fix is available, organizations should monitor IBM advisories for updates and consider restricting access or applying compensating controls to token validation processes if possible.

Description

IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 contain a vulnerability where improper verification of a cryptographic signature allows an attacker to gain unauthorized access to an organization. Specifically, a token can be accepted without its signature being fully verified, enabling an attacker to join an organization without a valid invitation.

References

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