Palo Alto VPN bug graduates from advisory to active exploitation
A security flaw in Palo Alto's GlobalProtect VPN has transitioned from advisory status to active exploitation. Attackers are exploiting an authentication bypass vulnerability, allowing unauthorized access to VPN sessions. Organizations are urged to patch their systems promptly to prevent potential breaches.
- ▪The flaw, tracked as CVE-2026-0257, affects PAN-OS deployments using GlobalProtect authentication override cookies.
- ▪Rapid7 observed successful exploitation attempts across multiple customer environments starting May 17.
- ▪The vulnerability has been added to CISA's Known Exploited Vulnerabilities catalog, with a patch deadline of June 1.
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| Original publisher | www.theregister.com - Articles |
| Canonical URL | https://www.theregister.com/cyber-crime/2026/06/01/palo-alto-vpn-bug-graduates-from-advisory-to-active-exploitation/5249114 |
| Publication time | Mon, 01 Jun 2026 14:15:00 +0200 |
| Retrieval time | 2026-06-01T12:42:42.352Z |
| Last seen | 2026-06-01T14:01:57.881Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | rr5XunaeeyLc |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
(function() { let windowUrl = window.location.href; windowUrl = windowUrl.substring(windowUrl.indexOf('?') + 1); let messageElement = document.querySelector('.shareableMessage'); if (windowUrl && windowUrl.includes('code') && windowUrl.includes('expires')) { messageElement.style.display = 'block'; } })(); Cyber-crime Palo Alto VPN bug graduates from advisory to active exploitation Rapid7: Attackers exploit authentication bypass flaw in the wild, meaning more emergency patching for PAN-OS users Carly Page Carly Page Published mon 1 Jun 2026 // 13:15 UTC Palo Alto customers are being been told to patch yet another internet-facing security flaw after researchers caught attackers bypassing GlobalProtect authentication and gaining unauthorized VPN access.The flaw, tracked as CVE-2026-0257,…
Excerpt limited to ~120 words for fair-use compliance. The full article is at www.theregister.com - Articles.