CVE-2026-0257: CWE-565 Reliance on Cookies without Validation and Integrity Checking in Palo Alto Networks Cloud NGFW
Arctic Wolf Labs has been tracking multiple campaigns built around CastleLoader, a multi-stage shellcode loader that has evolved significantly. Three distinct campaigns were identified: Urutyka, Garrigin, and Noidret. The most significant development is the integration of NeedleStealer framework payloads, marking the first observed use of Rust and Golang tooling in this campaign cluster. NeedleStealer includes a Rust-based desktop cryptocurrency wallet spoofer targeting Ledger, Trezor, and Exodus wallets, and a Golang-based malicious browser extension installer. The campaigns utilize obfuscated PowerShell stagers, IronPython runtimes, and NodeJS-based shellcode injectors. Infrastructure analysis revealed consistent naming patterns, staged domains for future operations, and the use of fraudulently obtained code-signing certificates. The campaigns consistently deploy NetSupport RAT and CastleStealer alongside the new NeedleStealer payloads, suggesting an expansion toward high-value cryptocurrency targeting.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-0257) involves authentication bypass in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS software due to reliance on cookies without validation and integrity checking (CWE-565). Exploiting this flaw enables attackers to circumvent security controls and gain unauthorized VPN access. The issue does not impact Panorama or Cloud NGFW products. No patch or official remediation level has been provided in the available data. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, with high scope and impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an attacker to bypass authentication mechanisms on the GlobalProtect portal and gateway, resulting in unauthorized VPN access. This could lead to unauthorized network access and potential compromise of internal resources. Panorama and Cloud NGFW are confirmed not impacted by this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, organizations should monitor Palo Alto Networks advisories for updates. Until a fix is available, consider restricting access to the GlobalProtect portal and gateway to trusted networks or users where feasible.
Indicators of Compromise
- domain: teamsvoicepremium.com
- domain: italianhitech.com
- ip: 94.26.90.112
- domain: ebedidance.com
- domain: drrajivparti.com
- cve: CVE-2026-0257
- hash: d26ea6828cc01ae151d99bbee78c4e6d132e9077842a558bce3901fa0970d9be
- domain: p-rala.com
- cve: CVE-2026-48558
- hash: 2fcf553b9656523b3207c08cdf16f7be9a25e55cf8c29f5caf933151c9214367
- domain: avivtech.org
- domain: claudettes.net
- domain: skipraid.com
- hash: 1390903f57b21f346193aefbbfd36759
- hash: 4d5f81bf79554aa7a2187e6ffbc9702a
- hash: 6728b11f74fd435f926ed25c5f2952bb
- hash: 0c48fd6a18ad9c701b254bbdd412efbf7dfdd2be6534a61c14bce719d259df9f
- hash: edff43ecdf7aa476331d925db04e68a2251920165a2109be9df91a56d86b87c7
- hash: fa67487da701ce1d61ee3abb84869f669a6c2aa50ca0148a3c4a87e667716638
- ip: 179.132.128.189
- ip: 216.107.139.188
- ip: 91.92.33.167
- url: http://94.26.90.112/dl-callback/6dkcdpd7-4jacbuf9-prutgux4-2ybssc8v/traffic1.exe/1390903f57b21f346193aefbbfd36759
- url: http://eazysitebuilder.com:4889
- url: http://goodbytetelegramm.com/xxx/main
- url: http://socom-game.com:5500
- url: http://urutyka.com/xxx/viewer32
- domain: claudenell.net
- domain: eazysitebuilder.com
- domain: fangorinaf.com
- domain: garrigin.com
- domain: goodbytetelegramm.com
- domain: grenagana.com
- domain: grorriner.com
- domain: hobtech.net
- domain: kaneta.cc
- domain: monblare.com
- domain: noidret.com
- domain: quiantar.com
- domain: qxvnrta.com
- domain: socom-game.com
- domain: strainted.com
- domain: thenugcompany.org
- domain: urutyka.com
CVE-2026-0257: CWE-565 Reliance on Cookies without Validation and Integrity Checking in Palo Alto Networks Cloud NGFW
Description
Arctic Wolf Labs has been tracking multiple campaigns built around CastleLoader, a multi-stage shellcode loader that has evolved significantly. Three distinct campaigns were identified: Urutyka, Garrigin, and Noidret. The most significant development is the integration of NeedleStealer framework payloads, marking the first observed use of Rust and Golang tooling in this campaign cluster. NeedleStealer includes a Rust-based desktop cryptocurrency wallet spoofer targeting Ledger, Trezor, and Exodus wallets, and a Golang-based malicious browser extension installer. The campaigns utilize obfuscated PowerShell stagers, IronPython runtimes, and NodeJS-based shellcode injectors. Infrastructure analysis revealed consistent naming patterns, staged domains for future operations, and the use of fraudulently obtained code-signing certificates. The campaigns consistently deploy NetSupport RAT and CastleStealer alongside the new NeedleStealer payloads, suggesting an expansion toward high-value cryptocurrency targeting.
CVSS v4.0
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-0257) involves authentication bypass in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS software due to reliance on cookies without validation and integrity checking (CWE-565). Exploiting this flaw enables attackers to circumvent security controls and gain unauthorized VPN access. The issue does not impact Panorama or Cloud NGFW products. No patch or official remediation level has been provided in the available data. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, with high scope and impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an attacker to bypass authentication mechanisms on the GlobalProtect portal and gateway, resulting in unauthorized VPN access. This could lead to unauthorized network access and potential compromise of internal resources. Panorama and Cloud NGFW are confirmed not impacted by this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, organizations should monitor Palo Alto Networks advisories for updates. Until a fix is available, consider restricting access to the GlobalProtect portal and gateway to trusted networks or users where feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- palo_alto
- Date Reserved
- 2025-11-03T20:44:17.691Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Indicators of Compromise
Domain
| Value | Description | Copy |
|---|---|---|
domainteamsvoicepremium.com | — | |
domainitalianhitech.com | — | |
domainebedidance.com | — | |
domaindrrajivparti.com | — | |
domainp-rala.com | — | |
domainavivtech.org | — | |
domainclaudettes.net | — | |
domainskipraid.com | — | |
domainclaudenell.net | — | |
domaineazysitebuilder.com | — | |
domainfangorinaf.com | — | |
domaingarrigin.com | — | |
domaingoodbytetelegramm.com | — | |
domaingrenagana.com | — | |
domaingrorriner.com | — | |
domainhobtech.net | — | |
domainkaneta.cc | — | |
domainmonblare.com | — | |
domainnoidret.com | — | |
domainquiantar.com | — | |
domainqxvnrta.com | — | |
domainsocom-game.com | — | |
domainstrainted.com | — | |
domainthenugcompany.org | — | |
domainurutyka.com | — |
Ip
| Value | Description | Copy |
|---|---|---|
ip94.26.90.112 | — | |
ip179.132.128.189 | — | |
ip216.107.139.188 | — | |
ip91.92.33.167 | — |
Cve
| Value | Description | Copy |
|---|---|---|
cveCVE-2026-0257 | — | |
cveCVE-2026-48558 | — |
Hash
| Value | Description | Copy |
|---|---|---|
hashd26ea6828cc01ae151d99bbee78c4e6d132e9077842a558bce3901fa0970d9be | — | |
hash2fcf553b9656523b3207c08cdf16f7be9a25e55cf8c29f5caf933151c9214367 | — | |
hash1390903f57b21f346193aefbbfd36759 | — | |
hash4d5f81bf79554aa7a2187e6ffbc9702a | — | |
hash6728b11f74fd435f926ed25c5f2952bb | — | |
hash0c48fd6a18ad9c701b254bbdd412efbf7dfdd2be6534a61c14bce719d259df9f | — | |
hashedff43ecdf7aa476331d925db04e68a2251920165a2109be9df91a56d86b87c7 | — | |
hashfa67487da701ce1d61ee3abb84869f669a6c2aa50ca0148a3c4a87e667716638 | — |
Url
| Value | Description | Copy |
|---|---|---|
urlhttp://94.26.90.112/dl-callback/6dkcdpd7-4jacbuf9-prutgux4-2ybssc8v/traffic1.exe/1390903f57b21f346193aefbbfd36759 | — | |
urlhttp://eazysitebuilder.com:4889 | — | |
urlhttp://goodbytetelegramm.com/xxx/main | — | |
urlhttp://socom-game.com:5500 | — | |
urlhttp://urutyka.com/xxx/viewer32 | — |
Threat ID: 6a04c4b4cbff5d8610fad297
Added to database: 05/13/2026, 18:36:36 UTC
Last enriched: 07/29/2026, 20:52:18 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 233
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