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VulnerabilityPublished Updated

CVE-2026-0637: When an Event Publisher output adapter is configured with irrelevant properties, the affected products

Source GCVE Database

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Authoritative record:CVE-2026-0637· Medium 5.4

Not known to be exploited · CVSS 5.4 Medium · fixed in 4.6.0.12 : update WSO2 API Manager when convenient.

Data as of 4 Nov 2026, 16:28 UTC

CVSS 3.1 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (WSO2)CVSS 3.15.4
Patch
Available – fixed in 4.6.0.12, 4.5.0.44, 4.4.0.63 +7
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 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 4 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
WSO2WSO2 API ManagerAffected
  • >=4.6.0 <4.6.0.12
Fixed in
  • 4.6.0.12
WSO2WSO2 API ManagerAffected
  • >=4.5.0 <4.5.0.44
Fixed in
  • 4.5.0.44
WSO2WSO2 API ManagerAffected
  • >=4.4.0 <4.4.0.63
Fixed in
  • 4.4.0.63
WSO2WSO2 API ManagerAffected
  • >=4.3.0 <4.3.0.99
Fixed in
  • 4.3.0.99
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.

Description

When an Event Publisher output adapter is configured with irrelevant properties, the affected products log these properties. This logging occurs without sufficient validation or sanitization of the property values. A malicious actor with access to the 'wso2carbon' log files could retrieve sensitive information, such as user credentials or other confidential data, that was inadvertently logged due to misconfiguration, potentially leading to unauthorized access.

References

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