CVE-2026-18838 | BDVDB-2026-401533 Detail

IBMAPI Connect

Description#

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to obtain sensitive information and modify API configurations due to improper authentication. Identity information supplied in requests is not sufficiently verified, which could allow a caller to impersonate another user.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact low. Attack vector: network.

Weaknesses#

CWE-290 Authentication Bypass by Spoofing

References#

https://www.ibm.com/support/pages/node/7295635

Exploit#

No public exploit known

History#

Version 12026-11-07Record published in the CVE List.

Published

Published: 2026-11-07
Last modified: 2026-11-07

Vendor information

Vendor: IBM
Product: API Connect

All IBM vulnerabilities

Score

9.4 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 52.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 12.1.0.0 and <= 12.1.1.2
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.4 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).