CVE-2026-20152
published 2026-04-15CVE-2026-20152: A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker…
PriorityP337medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.30%
21.8th percentile
A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass authentication policy requirements.
This vulnerability is due to improper validation of user-supplied authentication input in HTTP requests. An attacker could exploit this vulnerability by sending HTTP requests that contain specific authentication requests to an affected device. A successful exploit could allow the attacker to bypass policy enforcement on the device. There is no direct impact to the Cisco Secure Web Appliance. However, as a result of exploiting this vulnerability, an attacker could send HTTP requests that should be restricted through the device.
Affected
60 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
| cisco | cisco_secure_web_appliance | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
vendor_cisco3.1
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Cisco
Cisco Secure Web Appliance Authentication Bypass Vulnerability
vendor_cisco·CVSS 3.1
CVE-2026-20152 Cisco Secure Web Appliance Authentication Bypass Vulnerability
CVE-2026-20152: Cisco Secure Web Appliance Authentication Bypass Vulnerability
A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass authentication policy requirements. This vulnerability is due to improper validation of user-supplied authentication input in HTTP requests. An attacker could exploit this vulnerability by sending HTTP requests that contain specific authentication requests to an affected device. A successful exploit could allow the attacker to bypass policy enforcement on the device. There is no direct impact to the Cisco Secure Web Appliance. However, as a result of exploiting this vulnerability, an attacker could send HTTP requests that should be restricted thr
GHSA
GHSA-v3r6-6788-v9xh: A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote
ghsa_unreviewed·2026-04-15
CVE-2026-20152 [MEDIUM] CWE-305 GHSA-v3r6-6788-v9xh: A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote
A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass authentication policy requirements.
This vulnerability is due to improper validation of user-supplied authentication input in HTTP requests. An attacker could exploit this vulnerability by sending HTTP requests that contain specific authentication requests to an affected device. A successful exploit could allow the attacker to bypass policy enforcement on the device. There is no direct impact to the Cisco Secure Web Appliance. However, as a result of exploiting this vulnerability, an attacker could send HTTP requests that should be restricted through the device.
VulDB
Cisco Secure Web Appliance up to 15.2.5-013 Authentication Service authentication bypass (cisco-sa-wsa-auth-bypass-6YZkTQhd / EUVD-2026-22964)
vuldb·2026-04-15·CVSS 5.3
CVE-2026-20152 [MEDIUM] Cisco Secure Web Appliance up to 15.2.5-013 Authentication Service authentication bypass (cisco-sa-wsa-auth-bypass-6YZkTQhd / EUVD-2026-22964)
A vulnerability, which was classified as problematic, was found in Cisco Secure Web Appliance. This affects an unknown part of the component Authentication Service. The manipulation results in authentication bypass by primary weakness.
This vulnerability is cataloged as CVE-2026-20152. The attack may be launched remotely. There is no exploit available.
You should upgrade the affected component.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-04-15
Published