CVE-2026-0277 Prisma Access Agent: Improper Certificate Validation on iOS
Exploit Maturity
UNREPORTED
Response Effort
MODERATE
Recovery
USER
Value Density
DIFFUSE
Attack Vector
ADJACENT
Attack Complexity
LOW
Attack Requirements
PRESENT
Automatable
NO
User Interaction
PASSIVE
Product Confidentiality
HIGH
Product Integrity
HIGH
Product Availability
NONE
Privileges Required
NONE
Subsequent Confidentiality
HIGH
Subsequent Integrity
HIGH
Subsequent Availability
NONE
Description
An improper certificate validation vulnerability in the Prisma® Access Agent for iOS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic.
The Prisma Access Agent on Windows, macOS, Linux, Android and ChromeOS are not affected.
Product Status
| Versions | Affected | Unaffected |
|---|---|---|
| Prisma Access Agent | None on Linux None on Windows None on macOS None on Android None on ChromeOS | All on Linux All on Windows All on macOS All on Android All on ChromeOS |
| Prisma Access Agent 0 | < 26.2.1 on iOS | >= 26.2.1 on iOS |
Required Configuration for Exposure
No special configuration is required to be affected by this issue.
Severity: MEDIUM, Suggested Urgency: MODERATE
CVSS-BT: 5.7 / CVSS-B: 8.7 (CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber)
Exploitation Status
Palo Alto Networks is not aware of any malicious exploitation of this issue.
Weakness Type and Impact
CWE-295 Improper Certificate Validation
CAPEC-94 Adversary in the Middle (AiTM)
Solution
| Version | Minor Version | Suggested Solution |
|---|---|---|
| Prisma Access Agent on iOS |
25.0 through 26.2 | Upgrade to 26.2.1 or later. |
| Prisma Access Agent on Linux | No action needed. | |
| Prisma Access Agent on Windows | No action needed. | |
| Prisma Access Agent on macOS | No action needed. | |
| Prisma Access Agent on Android | No action needed. | |
| Prisma Access Agent on ChromeOS | No action needed. |
Workarounds and Mitigations
No known workarounds exist for this issue.
Acknowledgments
Palo Alto Networks thanks our internal security research teams for discovering and reporting this issue.
CPE Applicability
- cpe:2.3:a:palo_alto_networks:prisma_access_agent:*:*:*:*:*:iOS:*:* is vulnerable from (including)25.0 and up to (excluding)26.2.1
Timeline
Initial Publication