MAL-2026-17896
Malicious code in xapi-lib (npm)
Published Oct 15, 2026 · corrected/updated Oct 16, 2026 · evidence confidence medium
xapi-lib@88.2.3, 88.2.5, 90.2.1, and 90.3.1 describes itself as a package for getting IP location and metadata. Its preinstall hook runs on npm install and requests with the hardcoded Authorization value , which is the same in all four versions and differs from the value in each of the account's other packages. The npm account conx3993 published xapi-lib on 2026-10-15, one of 9 packages from that account between 2026-09-30 and 2026-10-15 whose preinstall hook calls realwbx.com. --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (beac62be73c115f383ea095cc364879294d6c105817d3c0eb6bfb30ce7bcf46c) xapi-lib@88.2.3 declares in package.json, and index.js performs an unconditional top-level HTTPS GET to realwbx.com/ip.php (passing and a hardcoded Authorization header) on load. The call fires automatically during , sending the installer's source IP to a hardcoded non-publisher endpoint unrelated to any advertised functionality. The package itself is a one-file stub with no library content, so dependency resolution plus the preinstall beacon is the entire effect of installing it. The destination realwbx.com is not a publisher-aligned domain, the request is not caller-configurable, and no documentation discloses the outbound call.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
MAL-2026-17896 is a unknown public vulnerability record for this product. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether this product is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: xapi-lib (88.2.5, 88.2.3, 90.2.1). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: no CVSS/EPSS yet. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: osv. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 15, 2026 · OSV.dev
Detected
xapi-lib@88.2.3, 88.2.5, 90.2.1, and 90.3.1 describes itself as a package for getting IP location and metadata. Its preinstall hook runs on npm install and requests with the hardcoded Authorization value , which is the same in all four versions and differs from the value in each of the account's other packages. The npm account conx3993 published xapi-lib on 2026-10-15, one of 9 packages from that
Oct 16, 2026 · OSV.dev
Updated
xapi-lib@88.2.3, 88.2.5, 90.2.1, and 90.3.1 describes itself as a package for getting IP location and metadata. Its preinstall hook runs on npm install and requests with the hardcoded Authorization value , which is the same in all four versions and differs from the value in each of the account's other packages. The npm account conx3993 published xapi-lib on 2026-10-15, one of 9 packages from that
Affected
- npm xapi-lib88.2.5, 88.2.3, 90.2.1