CVE-2026-17139
Multiple Vulnerabilities in IBM API Connect
CVE-2026-17139 is a medium vulnerability (CVSS 5.4) in Ibm Api Connect, published November 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. No source names a fixed version.
- Severity
- 5.4 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.35%EPSS, 29th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary scripts due to cross-site scripting. Certain URL fields are not sufficiently validated, so malicious script content could run in another user's browser session.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
Affected products
What each source reports
CVE List Score used
Multiple Vulnerabilities in IBM API Connect
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary scripts due to cross-site scripting. Certain URL fields are not sufficiently validated, so malicious script content could run in another user's browser session.
- Record
CVE-2026-17139- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-07
EUVDEUVD-2026-118639
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary scripts due to cross-site scripting. Certain URL fields are not sufficiently validated, so malicious script content could run in another user's browser session.
- Record
EUVD-2026-118639- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-07
GitHub AdvisoriesGHSA-9635-3w7v-6rpx
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote...
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary scripts due to cross-site scripting. Certain URL fields are not sufficiently validated, so malicious script content could run in another user's browser session.
- Record
GHSA-9635-3w7v-6rpx- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-07
NVD
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary scripts due to cross-site scripting. Certain URL fields are not sufficiently validated, so malicious script content could run in another user's browser session.
- Record
CVE-2026-17139- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-12
History
| Recorded | Changed | Sources |
|---|---|---|
| products, references | NVD | |
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.