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Full vulnerability report · 2026
CVE-2026-0268High confidence

Prisma Access Agent: Local Authenticated VPN Enforcement Bypass on Linux

Palo Alto Networks · Prisma Access Agent

4.4MediumCVSS 4.0
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Low, lowered one band.downgradedsince 11 Jun 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.10% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Palo Alto Networks Prisma Access Agent and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: No default targetRemediation target: Normal maintenance

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-36144

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

A security control bypass vulnerability in Prisma Access Agent for Linux allows a local attacker to route network traffic outside the VPN tunnel. This does not impact Prisma Access Agent on Windows, macOS, iOS, Android, or ChromeOS.

What

A security control bypass vulnerability in Prisma Access Agent for Linux allows a local attacker to route network traffic outside the VPN tunnel. This does not impact Prisma Access Agent on Windows, macOS, iOS, Android, or ChromeOS.

Why

The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A security control bypass vulnerability in Prisma Access Agent for Linux allows a local attacker to route network traffic outside the VPN tunnel. This does not impact Prisma Access Agent on Windows, macOS, iOS, Android, or ChromeOS.

Why

The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Improper Protection of Alternate Path → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-424 ↗

CWE-424: Improper Protection of Alternate Path. The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber

Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATNoneAttack requirements: No additional deployment or execution condition is required.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.VCHighVulnerable-system confidentiality: A successful attack can cause a major loss.VILowVulnerable-system integrity: A successful attack can cause a limited loss.VANoneVulnerable-system availability: No direct loss is represented by this metric.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-424
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2026-AVI-0734Multiples vulnérabilités dans les produits Palo Alto Networks

d'actualité Premier Ministre S.G.D.S.N Agence nationale de la sécurité des systèmes d'information Paris, le 11 juin 2026 N° CERTFR-2026-AVI-0734 Affaire suivie par: CERT-FR Avis du CERT-FR Objet: Multiples vulnérabilités dans les produits Palo Alto Networks Gestion du document Référence CERTFR-2026-AVI-0734 Titre Multiples vulnérabilités dans les produits Palo Alto Networks Date de la première version 11 juin 2026 Date de la dernière version 11 juin 2026 Source(s) Bulletin de sécurité Palo Alto Networks CVE-2026-0266 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0267 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0268 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0269 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0270 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0271 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0272 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0273 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks CVE-2026-0274 du 10 juin 2026 Bulletin de sécurité Palo Alto Networks PAN-SA-2026-0008 du 10 juin 2026 Une gestion de version détaillée se trouve à la fin de ce document. Risques Atteinte à la confidentialité des données Contournement de la po

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-023583Palo Alto NetworksのPrisma Access Agentにおける代替パスの保護に関する脆弱性

Linux用Prisma Access Agentにおけるセキュリティ制御バイパスの脆弱性により、ローカルの攻撃者がVPNトンネルの外部にネットワークトラフィックをルーティングできるようになります。この脆弱性はWindows、macOS、iOS、Android、およびChromeOS用のPrisma Access Agentには影響しません。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Prisma Access Agent: < 26.2.1
Fixed
Prisma Access Agent: All
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 10 Jun 2026 · Last source change 11 Jun 2026, 13:57 UTC · CWE-424 · Improper Protection of Alternate Path

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-36144
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-36144↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-0268 · cve.blacktree.nl