CVE-2026-0265

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-05-13. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekWeaponized
8.1EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Metasploit, public exploit)
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: Metasploit · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled.

The risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used.

The risk of this issue is greatly reduced if you secure access to the management web interface by restricting access to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .

This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).

Cloud NGFW and Prisma Access® are not impacted by this vulnerability.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

May 13, 2026

Last Modified

July 14, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

SSA-967325

https://cert-portal.siemens.com/productcert/html/ssa-967325.html
generic

CVE-2026-0265 PAN-OS: Authentication Bypass with Cloud Authentication Service (CAS) enabled

https://security.paloaltonetworks.com/CVE-2026-0265

Vendor Advisories for CVE-2026-0265(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 63× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 209 total refreshes for this CVE.

  1. 2026-08-30 01:21 UTCEPSS rescore
  2. 2026-08-28 21:40 UTCEPSS rescore
  3. 2026-08-27 14:24 UTCEPSS rescore
  4. 2026-08-25 13:48 UTCEPSS rescore
  5. 2026-08-23 17:52 UTCEG score recompute
  6. 2026-08-23 17:52 UTCGHSA enrichment
  7. 2026-08-23 00:19 UTCEPSS rescore
  8. 2026-08-21 23:48 UTCEPSS rescore
  9. 2026-08-20 22:55 UTCEPSS rescore
  10. 2026-08-20 20:57 UTCEG score recompute
  11. 2026-08-20 20:57 UTCGHSA enrichment
  12. 2026-08-19 17:03 UTCEPSS rescore
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-17 10:39 UTCEG score recompute
  15. 2026-08-17 10:39 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 04:03 UTCEG score recompute
  18. 2026-08-16 04:03 UTCGHSA enrichment
  19. 2026-08-16 02:14 UTCEPSS rescore
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-14 15:26 UTCGHSA enrichment
  22. 2026-08-14 02:32 UTCEG score recompute
  23. 2026-08-14 02:32 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 04:44 UTCGHSA enrichment
Show 75 more
  1. 2026-08-12 15:50 UTCEG score recompute
  2. 2026-08-12 15:50 UTCGHSA enrichment
  3. 2026-08-12 13:50 UTCEPSS rescore
  4. 2026-08-11 15:28 UTCEG score recompute
  5. 2026-08-11 15:28 UTCGHSA enrichment
  6. 2026-08-11 13:42 UTCEPSS rescore
  7. 2026-08-11 00:57 UTCEG score recompute
  8. 2026-08-11 00:57 UTCGHSA enrichment
  9. 2026-08-10 23:59 UTCEPSS rescore
  10. 2026-08-10 03:42 UTCGHSA enrichment
  11. 2026-08-09 14:49 UTCEG score recompute
  12. 2026-08-09 14:49 UTCGHSA enrichment
  13. 2026-08-09 13:46 UTCEPSS rescore
  14. 2026-08-09 01:55 UTCEG score recompute
  15. 2026-08-09 01:55 UTCGHSA enrichment
  16. 2026-08-08 16:37 UTCEPSS rescore
  17. 2026-08-08 03:10 UTCEG score recompute
  18. 2026-08-08 03:10 UTCGHSA enrichment
  19. 2026-08-07 14:16 UTCGHSA enrichment
  20. 2026-08-07 01:23 UTCEG score recompute
  21. 2026-08-07 01:23 UTCGHSA enrichment
  22. 2026-08-06 13:46 UTCEPSS rescore
  23. 2026-08-06 10:41 UTCGHSA enrichment
  24. 2026-08-05 21:41 UTCEG score recompute
  25. 2026-08-05 21:41 UTCGHSA enrichment
  26. 2026-08-05 19:17 UTCEPSS rescore
  27. 2026-08-04 15:09 UTCEPSS rescore
  28. 2026-08-04 10:38 UTCEPSS rescore
  29. 2026-08-03 19:09 UTCEG score recompute
  30. 2026-08-03 19:09 UTCGHSA enrichment
  31. 2026-08-03 10:35 UTCEPSS rescore
  32. 2026-08-02 22:16 UTCGHSA enrichment
  33. 2026-08-02 09:22 UTCEG score recompute
  34. 2026-08-02 09:21 UTCGHSA enrichment
  35. 2026-08-02 02:26 UTCEPSS rescore
  36. 2026-08-01 19:54 UTCEG score recompute
  37. 2026-08-01 19:54 UTCGHSA enrichment
  38. 2026-08-01 04:15 UTCEPSS rescore
  39. 2026-07-30 16:27 UTCEPSS rescore
  40. 2026-07-30 01:30 UTCEPSS rescore
  41. 2026-07-28 15:36 UTCEPSS rescore
  42. 2026-07-27 14:13 UTCEPSS rescore
  43. 2026-07-26 14:54 UTCEPSS rescore
  44. 2026-07-26 14:54 UTCEPSS rescore
  45. 2026-07-25 14:17 UTCEPSS rescore
  46. 2026-07-24 14:17 UTCEPSS rescore
  47. 2026-07-23 14:18 UTCEPSS rescore
  48. 2026-07-23 03:04 UTCEG score recompute▲ 0.90
  49. 2026-07-22 14:08 UTCEPSS rescore
  50. 2026-07-21 15:24 UTCEPSS rescore
  51. 2026-07-20 17:08 UTCEPSS rescore
  52. 2026-07-19 14:30 UTCEPSS rescore
  53. 2026-07-19 02:28 UTCEPSS rescore
  54. 2026-07-18 10:04 UTCEPSS rescore
  55. 2026-07-16 17:02 UTCEPSS rescore
  56. 2026-07-15 16:57 UTCEPSS rescore
  57. 2026-07-15 02:00 UTCEPSS rescore
  58. 2026-07-14 16:03 UTCNVD updateCVSS v3 → 8.1
  59. 2026-07-13 22:30 UTCEPSS rescore
  60. 2026-07-13 06:12 UTCEPSS rescore
  61. 2026-07-12 05:46 UTCEPSS rescore
  62. 2026-07-11 08:27 UTCEPSS rescore
  63. 2026-07-09 19:10 UTCEPSS rescore
  64. 2026-07-08 15:15 UTCEPSS rescore
  65. 2026-07-08 15:15 UTCEPSS rescore
  66. 2026-07-07 13:46 UTCEPSS rescore
  67. 2026-07-06 16:27 UTCEPSS rescore
  68. 2026-07-06 02:23 UTCEPSS rescore
  69. 2026-07-05 02:30 UTCEPSS rescore
  70. 2026-07-05 02:30 UTCEPSS rescore
  71. 2026-07-04 06:31 UTCEPSS rescore
  72. 2026-07-01 15:06 UTCEPSS rescore
  73. 2026-07-01 15:06 UTCEPSS rescore
  74. 2026-06-30 23:22 UTCEPSS rescore
  75. 2026-06-29 22:16 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCBishopFox/CVE-2026-0265-check
    First seen May 22, 2026

    Safely detect whether a PAN-OS target is vulnerable to CVE-2026-0265.

    Open source ↗
  • Metasploitauxiliary/scanner/http/panos_cve_2026_0265✓ verified
    First seen May 21, 2026

    PAN-OS GlobalProtect CAS CVE-2026-0265 Vulnerability Checker

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-0265?
CVE-2026-0265 is a high vulnerability published on May 13, 2026. An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled. The risk is higher if CAS is enabled on the management interface and lower when…
When was CVE-2026-0265 disclosed?
CVE-2026-0265 was first published in the National Vulnerability Database on May 13, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-0265 actively exploited?
CVE-2026-0265 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 38.5% of all scored CVEs.
What is the CVSS score of CVE-2026-0265?
CVE-2026-0265 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-0265?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-0265, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-0265

Explore →

Is Your Infrastructure Affected by CVE-2026-0265?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs