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VulnerabilityPublished

CVE-2026-18800: WSO2 API Manager · Sensitive Data in Logs

Affects WSO2 API ManagerSource CVE Database V5

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Not known to be exploited · CVSS 4.4 Medium · fixed in 4.6.0.13 : update WSO2 API Manager when convenient.

Data as of 2 Nov 2026, 11:12 UTC

CVSS 3.1 base score
4.4Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (WSO2)CVSS 3.14.4
Patch
Available – fixed in 4.6.0.13, 4.5.0.49, 4.4.0.64 +23
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
WSO2WSO2 API ManagerAffected
  • >=4.6.0 <4.6.0.13
Fixed in
  • 4.6.0.13
WSO2WSO2 API ManagerAffected
  • >=4.5.0 <4.5.0.49
Fixed in
  • 4.5.0.49
WSO2WSO2 API ManagerAffected
  • >=4.4.0 <4.4.0.64
Fixed in
  • 4.4.0.64
WSO2WSO2 API ManagerAffected
  • >=4.3.0 <4.3.0.100
Fixed in
  • 4.3.0.100
WSO2WSO2 API ManagerAffected
  • >=4.2.0 <4.2.0.189
Fixed in
  • 4.2.0.189
WSO2WSO2 API ManagerAffected
  • >=4.1.0 <4.1.0.249
Fixed in
  • 4.1.0.249

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Fixed versions are available as listed in the established facts, including 3.1.0.357, 3.2.0.465, 3.2.1.84, 4.1.0.249, 4.2.0.189, 4.3.0.100, 4.4.0.64, 4.5.0.49, and 4.6.0.13. Users should upgrade to these fixed versions to remediate the vulnerability. No additional mitigation steps are specified or required beyond applying the official fixes.

Description

CVE-2026-18800 is a vulnerability in WSO2 API Manager where misconfigured Event Publisher output adapters log irrelevant properties, potentially including sensitive user credentials or confidential information. An attacker with access to the 'wso2carbon' log files could retrieve this sensitive data, possibly leading to unauthorized access. The issue affects multiple versions of WSO2 API Manager prior to specific fixed releases. The vulnerability has a medium severity rating with a CVSS score of 4.4.

References

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