8.7

CVE-2026-3415: wso2 wso2 api control plane XML Entity Expansion

CVSS: 8.7v3.1HighDeferred
Published 06-08-2026Last modified 23-09-2026
Open JSON

Vulnerability summary

CVE-2026-3415 is a high (CVSS 8.7) XML Entity Expansion vulnerability in wso2 wso2 api control plane. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v3.1 (CVE.org)
EPSS score
0.49%
0%100%
Low · +0.14 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-08-2026
    PublishedVulnerability first disclosed.
  2. 23-09-2026
    Last modifiedVulnerability information updated.

Description

The XML and schema validation functionalities within the SchemaValidator Mediator process XML input as part of validation flows. Under certain conditions, the XML parser allows the resolution of external entities when handling user-supplied XML content during validation operations. This behavior can occur when an attacker supplies crafted XML payloads to the relevant mediator flows with sufficient privileges. Successful exploitation may allow a highly privileged actor to read files accessible within the server hosting the affected product. Additionally, it may be possible to trigger outbound requests to unintended internal or external locations, depending on the server environment and network configuration. Specially crafted XML payloads can also lead to excessive resource consumption during parsing, impacting the availability of the product.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

+0.14 pp

From 0.34% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wso26 products
  • wso2 api control plane≥ 4.5.0, < 4.5.0.54 | ≥ 4.6.0, < 4.6.0.17
  • wso2 api manager≥ 3.2.0, < 3.2.0.472 | ≥ 3.2.1, < 3.2.1.91 | ≥ 4.1.0, < 4.1.0.254 | ≥ 4.2.0, < 4.2.0.194 | ≥ 4.3.0, < 4.3.0.105 | ≥ 4.4.0, < 4.4.0.68 | ≥ 4.5.0, < 4.5.0.53 | ≥ 4.6.0, < 4.6.0.16
  • wso2 carbon api gateway≥ 6.7.206, < 6.7.206.594 | ≥ 6.7.210, < 6.7.210.95 | ≥ 9.20.74, < 9.20.74.398 | ≥ 9.28.116, < 9.28.116.412 | ≥ 9.29.120, < 9.29.120.228 | ≥ 9.30.67, < 9.30.67.158 | ≥ 9.31.86, < 9.31.86.147 | ≥ 9.32.147, < 9.32.147.38
  • wso2 carbon api management implementation≥ 6.7.206, < 6.7.206.594 | ≥ 6.7.210, < 6.7.210.95 | ≥ 9.20.74, < 9.20.74.398 | ≥ 9.28.116, < 9.28.116.412 | ≥ 9.29.120, < 9.29.120.228 | ≥ 9.30.67, < 9.30.67.158 | ≥ 9.31.86, < 9.31.86.147 | ≥ 9.32.147, < 9.32.147.38
  • wso2 traffic manager≥ 4.5.0, < 4.5.0.52 | ≥ 4.6.0, < 4.6.0.16

1 vendor · 6 products

References

1 links