# CVE-2026-0277: Palo Alto Networks Prisma Access Agent improper certificate validation in iOS

Source: https://junglewise.ai/threats/cve-2026-0277-palo-alto-networks-prisma-access-agent-improper-certificate  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-09. Updated: 2026-07-09  
License: CC BY 4.0 with a link back

CVE-2026-0277 · Severity: info · CVSS 5.7 · Published 2026-07-09

Palo Alto Networks Prisma Access Agent is a mobile application used to provide secure VPN connectivity for remote workers. A security flaw in the iOS version of this app could allow an attacker on the same local network (such as public Wi-Fi) to intercept and view sensitive corporate data. This could lead to the exposure of login credentials or confidential business communications.

Technologies: [Palo Alto Networks Prisma Access Agent](https://junglewise.ai/threats/technologies/prisma-access-agent). Vendors: [Palo Alto Networks](https://junglewise.ai/threats/vendors/palo-alto-networks).

## Quick answers

**Is CVE-2026-0277 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-0277 being exploited in the wild.

**How severe is CVE-2026-0277?** Informational severity, with a CVSS score of 5.7, published 9 July 2026.

**Which products and versions are affected?** Palo Alto Networks Prisma Access Agent iOS versions 25.0 through 26.2; fixed in 26.2.1.

**Is there a fix for CVE-2026-0277?** A patch was published on 2026-07-09: Version 26.2.1 released to address the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-0277 attacked?** It is attacked from the adjacent network, in a network appliance.

**Am I affected by CVE-2026-0277?** Check whether you run Palo Alto Networks Prisma Access Agent at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An improper certificate validation vulnerability (CWE-295) exists in the Prisma Access Agent for iOS. The flaw stems from the application failing to correctly verify the authenticity of the server's SSL/TLS certificate during the connection process. An attacker positioned on an adjacent network (such as the same Wi-Fi segment) can exploit this by presenting a fraudulent certificate, enabling a Man-in-the-Middle (MitM) attack. Successful exploitation allows the attacker to decrypt, view, or modify VPN traffic. The issue is fixed in version 26.2.1; other platforms like Windows, macOS, and Android are not affected.

## Affected products

- Palo Alto Networks Prisma Access Agent iOS versions 25.0 through 26.2; fixed in 26.2.1

## Timeline

- 2026-07-08: disclosed: Discovered internally by Palo Alto Networks
- 2026-07-08: advisory
- 2026-07-09: patched: Version 26.2.1 released to address the issue

## References

- [https://security.paloaltonetworks.com/CVE-2026-0277](https://security.paloaltonetworks.com/CVE-2026-0277)

## Related threats

- [Palo Alto Networks Prisma Access Agent DLP bypass on Windows](https://junglewise.ai/threats/cve-2026-0306-palo-alto-networks-prisma-access-agent-dlp-bypass-on-windows)
- [Palo Alto Networks Prisma Access Agent information disclosure on Linux](https://junglewise.ai/threats/cve-2026-0305-palo-alto-networks-prisma-access-agent-information-disclosure-on)
- [Palo Alto Networks Prisma Access Agent DLP bypass on Windows](https://junglewise.ai/threats/cve-2026-0278-palo-alto-networks-prisma-access-agent-dlp-bypass-on-windows)
- [Palo Alto Networks Prisma Access Agent privilege escalation in Linux app](https://junglewise.ai/threats/cve-2026-0271-palo-alto-networks-prisma-access-agent-privilege-escalation-in)
- [Palo Alto Networks Prisma Access Agent VPN bypass in Linux](https://junglewise.ai/threats/cve-2026-0268-palo-alto-networks-prisma-access-agent-vpn-bypass-in-linux)