CVE-2021-43999
Improper validation of SAML responses
HIGH
8.8
CVSS Score
Published: January 11, 2022 at 10:10 PM UTC
Updated: June 17, 2026 at 04:11 AM UTC
1 product affected across 1 vendorGuacamole
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Severity
HIGH8.8
Exploit prediction
EPSS 2%
Description
Apache Guacamole 1.2.0 and 1.3.0 do not properly validate responses received from a SAML identity provider. If SAML support is enabled, this may allow a malicious user to assume the identity of another Guacamole user.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2022/01/11/7x_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.apache.org/thread/4dt9h5mo4o9rxlgxm3rp8wfqdtdjn2z9CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-287
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