What is CVE-2016-1000232?

CVE-2016-1000232 is a medium-severity vulnerability in IBM API Connect, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2018-09-05.

How severe is CVE-2016-1000232?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2016-1000232 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in IBM API Connect

CVE-2016-1000232

NodeJS Tough-Cookie version 2.2.2 contains a Regular Expression Parsing vulnerability in HTTP request Cookie Header parsing that can result in Denial of Service. This attack appear to be exploitable via Custom HTTP header passed by client. This vulnerability appears to have been fixed in 2.3.0.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-09-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.024 (83.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

IBM API Connect — versions 5.0.8.0
Salesforce Tough-Cookie
Red Hat Openshift Container Platform — versions 3.1, 3.2, 3.3

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

access.redhat.com/errata/RHSA-2016:2101 (vendor-advisory, Third Party Advisory)
www.ibm.com/blogs/psirt/ibm-security-bulletin-ibm-api-connect-is-affected-by-no… (Third Party Advisory)
access.redhat.com/errata/RHSA-2017:2912 (vendor-advisory, Third Party Advisory)
www.npmjs.com/advisories/130 (Third Party Advisory)
github.com/salesforce/tough-cookie/commit/615627206357d997d5e6ff9da158997de0523… (Patch, Third Party Advisory)
access.redhat.com/security/cve/cve-2016-1000232 (Third Party Advisory)
github.com/salesforce/tough-cookie/commit/e4fc2e0f9ee1b7a818d68f0ac7ea696f377b1… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2016-1000232?: CVE-2016-1000232 is a medium-severity vulnerability in IBM API Connect, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2018-09-05.
How severe is CVE-2016-1000232?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2016-1000232 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.