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Prisma Access Agent CVE-2026-0305

| EUVDEUVD-2026-75259 MEDIUM
Information Exposure (CWE-200)
2026-09-10 palo_alto GHSA-3fx5-jxpv-45qf
4.3
CVSS 4.0 · Vendor: palo_alto
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain local user shell access on Linux host
  2. Delivery
    Locate Prisma Access Agent credential/config storage
  3. Exploit
    Read sensitive data as low-privilege user
  4. Execution
    Extract VPN/ZTNA credentials
  5. Persist
    Authenticate to Prisma Access gateway as legitimate remote user
  6. Impact
    Pivot laterally through VPN tunnel

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an existing local, authenticated session on the Linux host where the Prisma Access Agent is installed (PR:L, AV:L). The attacker must be a non-root local user with standard shell access - root or elevated privileges are not required to read the exposed data. No special configuration or enabled features beyond the basic agent installation are indicated as prerequisites. Exploitation is limited to Linux deployments only; macOS, Windows, iOS, Android, and Chrome OS are confirmed unaffected. The key limiting factors are: (1) local shell access must already be obtained, (2) the vulnerable host must be running the Prisma Access Agent on Linux, and (3) no network-level exploitation path is present.

Impact

The real-world risk is moderate and bounded by the local-access constraint. CVSS 4.0 scores 4.3 with AV:L/PR:L, meaning an attacker must already have authenticated local shell access on a Linux endpoint running the Prisma Access Agent - a significant prerequisite that limits mass exploitation. The VC:H rating reflects that the disclosed credentials could be high-value (VPN/ZTNA credentials enabling further lateral movement or remote-access bypass), which elevates the downstream risk above what the base score alone suggests. The E:U modifier and U:Amber urgency indicate no known exploitation at time of disclosure. EPSS data is not provided; exploitation probability should be treated as low given the local-only attack vector and lack of public POC. The V:D (diffuse) value density rating further supports a lower exploitation priority. The primary concern is post-compromise lateral movement: an attacker who has already gained local access could harvest Prisma credentials to pivot via the VPN tunnel.

Exploit ScenarioDerived

An attacker who has gained a low-privileged local shell on a Linux host running the Prisma Access Agent - for example, through a separate vulnerability or stolen SSH credentials - reads the agent's configuration or credential files accessible at local user permission levels. The harvested Prisma credentials are then used to authenticate to the organization's Prisma Access/ZTNA gateway, enabling the attacker to move laterally as a trusted remote-access user. No public exploit code is known at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 10, 2026

Information disclosure in the Palo Alto Networks Prisma® Access Agent on Linux allows local low-privileged users to read sensitive configuration data and credentials stored by the agent process. Only the Linux platform is affected; Palo Alto Networks has explicitly confirmed that macOS, Windows, iOS, Android, and Chrome OS deployments are not impacted. No public exploit code and no active exploitation have been identified; the CVSS 4.0 vector carries an E:U (unexploited) modifier.

RemediationAI

Consult the Palo Alto Networks security advisory at https://security.paloaltonetworks.com/CVE-2026-0305 for the specific patched agent version and upgrade instructions. No exact fix version is derivable from the provided data - the advisory is the authoritative source. As a compensating control pending upgrade, restrict local shell access on Linux systems running the Prisma Access Agent to only trusted, authorized users, applying the principle of least privilege via standard Linux user and group permissions. Auditing file permissions of the agent's configuration and credential storage directories may help confirm exposure scope. Note that tightening local access controls does not eliminate the vulnerability but reduces the population of potential threat actors.

Affected VersionsENISA

Prisma Access Agent 24.0 <26.2

Affected Packages

euvd prisma_access_agent fix: 26.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Palo Alto Networks Prisma® Access Agent is an enterprise ZTNA/remote-access endpoint client. CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) indicates the Linux agent stores or exposes credentials and configuration data in a location or manner readable by unprivileged local users - typically insecure file permissions, world-readable configuration files, or accessible inter-process communication channels. The affected CPE is cpe:2.3:a:palo_alto_networks:prisma_access_agent:*:*:*:*:*:*:*:* with a wildcard version, implying multiple agent releases on Linux are affected. The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:N/VC:H) confirms local, low-privilege access with no special attack requirements, yielding high confidentiality impact only.

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Severity by source

Vendor (palo_alto) PRIMARY 4.3 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/V:D/RE:M/U:Amber
vuln.today AI 5.5 MEDIUM

Local-only attack requiring existing low-privilege shell; confidentiality-only impact with no integrity or availability consequence.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (palo_alto).

CVSS VectorVendor: palo_alto

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

1
Patch available
Sep 10, 2026 - 07:01 EUVD

DescriptionCVE.org

An information disclosure vulnerability in the Palo Alto Networks Prisma® Access Agent on Linux enables a local user to access sensitive configuration data and credentials.

The Prisma Access Agent on macOS, Windows, iOS, Android and Chrome OS is not affected.

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Prevalence
Medium
popular enterprise ZTNA/VPN client, Linux agent subset
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

CVE-2026-0248 MEDIUM
6.2 May 13

Improper certificate validation in Palo Alto Networks Prisma Access Agent versions below 26.2.1 on Android and Chrome OS

CVE-2026-0294 MEDIUM
6.0 Aug 13

Privilege escalation via an uncontrolled search path (CWE-427) in Palo Alto Networks Prisma Access Agent on Windows and

CVE-2026-0271 MEDIUM
5.9 Jun 10

Privilege escalation in Palo Alto Networks Prisma Access Agent on Linux allows a locally authenticated low-privileged us

CVE-2026-0247 MEDIUM
5.9 May 13

Authorization bypass in Palo Alto Networks Prisma Access Agent's Endpoint DLP component permits a locally authenticated

CVE-2026-0246 MEDIUM
5.9 May 13

Local privilege escalation in Palo Alto Networks Prisma Access Agent (all versions prior to 26.2.1) allows any locally a

CVE-2026-0278 MEDIUM
5.8 Jul 09

Multiple protection mechanism failures in the Data Loss Prevention (DLP) component of Palo Alto Networks Prisma Access A

CVE-2026-0306 MEDIUM
5.8 Sep 10

DLP policy enforcement bypass in Palo Alto Networks Prisma Access Agent on Windows allows a low-privileged local user to

CVE-2026-0277 MEDIUM
5.7 Jul 09

Improper certificate validation in the Palo Alto Networks Prisma Access Agent for iOS exposes VPN tunnel traffic to inte

CVE-2026-0293 MEDIUM
5.6 Aug 13

Anti-tamper protection bypass in Palo Alto Networks Prisma Access Agent on Windows allows a local administrator to gain

CVE-2026-0268 MEDIUM
4.4 Jun 10

Security control bypass in Palo Alto Networks Prisma Access Agent for Linux enables a local, low-privileged attacker to

CVE-2026-0245 MEDIUM
4.3 May 13

Prisma Access Agent on Windows and macOS exposes sensitive configuration data and credentials to local low-privileged us

CVE-2026-0292 LOW
2.1 Aug 13

Authentication bypass in the Windows network driver of Palo Alto Networks Prisma Access Agent allows a local administrat

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