CVE-2026-5430
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account Takeover
The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or supported. This allows an attacker to craft a JWT with an unsupported algorithm, which is then incorrectly validated, leading to unauthorized access. Successful exploitation of this vulnerability may result in unauthorized access to the system, including the potential compromise of administrative accounts and full account takeover. The CVSS score is adjusted to 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) in single-tenant deployments, reflecting that the impact is contained within a single security authority boundary.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
WSO2 Universal Gateway
- Vendor
- WSO2
- Product
- WSO2 Universal Gateway
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.5.0 | affected | custom | 4.5.0.57 | Unavailable | None listed |
| 4.6.0 | affected | custom | 4.6.0.21 | Unavailable | None listed |
WSO2 Traffic Manager
- Vendor
- WSO2
- Product
- WSO2 Traffic Manager
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.5.0 | affected | custom | 4.5.0.56 | Unavailable | None listed |
| 4.6.0 | affected | custom | 4.6.0.21 | Unavailable | None listed |
WSO2 API Control Plane
- Vendor
- WSO2
- Product
- WSO2 API Control Plane
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.5.0 | affected | custom | 4.5.0.58 | Unavailable | None listed |
| 4.6.0 | affected | custom | 4.6.0.22 | Unavailable | None listed |
WSO2 API Manager
- Vendor
- WSO2
- Product
- WSO2 API Manager
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | unknown | custom | 4.1.0 | Unavailable | None listed |
| 4.1.0 | affected | custom | 4.1.0.257 | Unavailable | None listed |
| 4.2.0 | affected | custom | 4.2.0.197 | Unavailable | None listed |
| 4.3.0 | affected | custom | 4.3.0.108 | Unavailable | None listed |
| 4.4.0 | affected | custom | 4.4.0.72 | Unavailable | None listed |
| 4.5.0 | affected | custom | 4.5.0.57 | Unavailable | None listed |
| 4.6.0 | affected | custom | 4.6.0.21 | Unavailable | None listed |
WSO2 Carbon API Manager Rest API Utility
- Vendor
- WSO2
- Product
- WSO2 Carbon API Manager Rest API Utility
- Platforms
- Unknown
- Default status
unknown- Package
- org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.util
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 9.20.74 | affected | custom | 9.20.74.401 | Unavailable | None listed |
| 9.28.116 | affected | custom | 9.28.116.417 | Unavailable | None listed |
| 9.29.120 | affected | custom | 9.29.120.236 | Unavailable | None listed |
| 9.30.67 | affected | custom | 9.30.67.167 | Unavailable | None listed |
| 9.31.86 | affected | custom | 9.31.86.158 | Unavailable | None listed |
| 9.32.147 | affected | custom | 9.32.147.59 | Unavailable | None listed |
| 9.33.106 | unaffected | custom | Unavailable | * | None listed |