CVE-2021-33880
MEDIUM
5.9
CVSS Score
Published: June 6, 2021 at 02:05 PM UTC
Updated: June 17, 2026 at 03:55 AM UTC
5 products affected across 2 vendorsCommunications Cloud Native Core PolicyCommunications Cloud Native Core Unified Data RepositoryCommunications Cloud Native Core Security Edge Protection Proxy
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Severity
MEDIUM5.9
Exploit prediction
EPSS 2%
Description
The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 9.1
Affected range stops below 9.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/aaugustin/websockets/commit/547a26b685d08cac0aa64e5e65f7867ac0ea9bc0x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpujan2022.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-203
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