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CVE-2026-17278

9.8 criticalEPSS 0.7%

Critical (9.8) in ibm api connect. EPSS 0.7% estimated probability of exploitation activity in the next 30 days.

On this page
IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to gain unauthorized access to sensitive API catalog and runtime configuration data due to improper authentication. Information supplied by the client is not sufficiently verified, which could allow a caller to appear as a trusted party.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.7% estimated probability of exploitation activity in the next 30 days; 54th percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-290 Authentication Bypass by Spoofing
OWASP Top 10
A07:2025 Authentication Failures
Published
Modified
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • ibm:api connect

Versions

From the CNA's record in the CVE List.

ProductAffected
IBM API Connectfrom 12.1.0.0 through 12.1.1.2

Attack patterns (CAPEC)

  • CAPEC-21 Exploitation of Trusted Identifiers Likelihood: High · Severity: High
  • CAPEC-22 Exploiting Trust in Client Likelihood: High · Severity: High
  • CAPEC-59 Session Credential Falsification through Prediction Likelihood: High · Severity: High
  • CAPEC-60 Reusing Session IDs (aka Session Replay) Likelihood: High · Severity: High
  • CAPEC-94 Adversary in the Middle (AiTM) Likelihood: High · Severity: Very High
  • CAPEC-459 Creating a Rogue Certification Authority Certificate Likelihood: Medium · Severity: Very High
  • CAPEC-461 Web Services API Signature Forgery Leveraging Hash Function Extension Weakness Severity: High
  • CAPEC-473 Signature Spoof
  • CAPEC-476 Signature Spoofing by Misrepresentation Likelihood: Low · Severity: High
  • CAPEC-667 Bluetooth Impersonation AttackS (BIAS) Likelihood: Medium · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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