CVE-2022-35741
Apache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be vulnerable to XML external entity (XXE) injection.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Apache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be vulnerable to XML external entity (XXE) injection. This plugin is not enabled by default and the attacker would require that this plugin be enabled to exploit the vulnerability. When the SAML 2.0 plugin is enabled in affected versions of Apache CloudStack could potentially allow the exploitation of XXE vulnerabilities. The SAML 2.0 messages constructed during the authentication flow in Apache CloudStack are XML-based and the XML data is parsed by various standard libraries that are now understood to be vulnerable to XXE injection attacks such as arbitrary file reading, possible denial of service, server-side request forgery (SSRF) on the CloudStack management server.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.01% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- apache/cloudstack
- Source
- security@apache.org
EPSS 8.0% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2022/07/18/2Mailing List, Mitigation, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/07/20/1Mailing List, Mitigation, Third Party Advisory
- https://lists.apache.org/thread/hwhxvtwp1d5dsm156bsf1cnyvtmrfv3fIssue Tracking, Mailing List, Mitigation, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2022/07/18/2Mailing List, Mitigation, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/07/20/1Mailing List, Mitigation, Third Party Advisory
- https://lists.apache.org/thread/hwhxvtwp1d5dsm156bsf1cnyvtmrfv3fIssue Tracking, Mailing List, Mitigation, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.