PAN-OS auth bypass exploited in the wild, plus a 9.8 in Redshift and a Chrome sandbox escape
Attackers are tunneling through Palo Alto firewalls without credentials right now. Also: Amazon's Redshift Python driver has a CVSS 9.8 RCE via eval(), Chrome's WebGPU layer has a 9.6 sandbox escape, and GitHub CLI is leaking auth tokens to external hosts.
Your Palo Alto firewall is the hot item this morning. CVE-2026-0257 is an authentication bypass on PAN-OS that's being exploited in the wild right now, letting attackers establish unauthorized VPN tunnels straight into your network. We've also got a CVSS 9.8 RCE in the Amazon Redshift Python driver, a CVSS 9.6 Chrome sandbox escape, and two more worth your attention, so stick around.
Today's CVEs
Sorted by urgencyCVE-2026-0257
CISA KEVAn attacker can bypass authentication on Palo Alto Networks PAN-OS firewalls and establish an unauthorized VPN connection. This is exploited in the wild right now. If your firewall is internet-facing (and it is), someone can tunnel straight into your network without valid credentials.
- Affected estate
- Anyone running Palo Alto Networks PAN-OS firewalls with GlobalProtect or other VPN services exposed to the internet
- How to check
- Run 'show system info' on the CLI to confirm your PAN-OS version. Cross-reference against Palo Alto's security advisory for affected versions.
- Included because
- unauthenticated; internet-facing; common product; exploited in the wild; EPSS 97th percentile
- Action
- Upgrade PAN-OS to the patched version listed in Palo Alto's advisory. Review VPN session logs for any unauthorized connections.
- Why it matters
- Attackers are already using this to VPN into networks without authentication, giving them direct internal access.
- Source
- Palo Alto Networks security advisory, CISA KEV
Evidence trail
- NVD: View source
CVE-2026-8838
GitHubThe Amazon Redshift Python driver (redshift-connector) uses eval() in a way that lets an attacker inject and execute arbitrary code remotely. CVSS 9.8, so the attack surface is wide open: no authentication, no user interaction. If your data pipelines or ETL jobs use this driver, an attacker could take over the host running the connector.
- Affected estate
- Data engineers and Python developers using the pip redshift-connector package in ETL pipelines, analytics workloads, or any application that talks to Amazon Redshift
- How to check
- Run 'pip show redshift-connector' on hosts or in container images to identify the installed version.
- Included because
- unauthenticated; remote code execution; CVSS 9.8; common in data infrastructure
- Action
- Upgrade redshift-connector to the fixed version via pip. Check all container images and deployment pipelines for pinned versions.
- Why it matters
- A CVSS 9.8 RCE via eval() injection means an attacker can run arbitrary code on the host, no credentials needed.
- Source
- NVD
Evidence trail
- NVD: View source
CVE-2026-44829
GitHubGotenberg, a popular document conversion API, has a path traversal bug. An attacker can craft a zip upload with Windows-style path separators in the filename to write files outside the intended directory. If you expose Gotenberg to user uploads (even indirectly through another service), this could let an attacker overwrite files on the server.
- Affected estate
- Teams running Gotenberg v8 as a document conversion service, especially if it accepts uploads from users or other applications
- How to check
- Check your container image tag or run the Gotenberg binary with '--version'. Look for the module in your Go dependency tree with 'go list -m all | grep gotenberg'.
- Included because
- CVSS 8.8; user-facing upload surface; common in document processing pipelines
- Action
- Upgrade to the patched Gotenberg v8 release. Review access controls on the upload endpoint.
- Why it matters
- Path traversal lets an attacker write arbitrary files on the server, which can lead to code execution or data destruction.
- Source
- NVD
Evidence trail
- NVD: View source
CVE-2026-9874
NVDA use-after-free bug in Chrome's Dawn graphics layer (the WebGPU backend) lets an attacker escape the browser sandbox via a malicious web page. CVSS 9.6, Chromium rates it Critical. A user just has to visit a crafted page. No other interaction required. This affects all Chromium-based browsers (Chrome, Edge, Brave, etc.) prior to 148.0.7778.216.
- Affected estate
- Anyone managing Chrome, Edge, or other Chromium-based browsers across desktops and endpoints
- How to check
- Open chrome://version or check your endpoint management console for browser version inventory.
- Included because
- CVSS 9.6; sandbox escape; no user interaction beyond visiting a page; ubiquitous product
- Action
- Push Chrome 148.0.7778.216 or later via your update mechanism. Verify rollout across managed endpoints.
- Why it matters
- A sandbox escape means a malicious web page can break out of the browser and run code on the underlying OS. That's about as bad as browser bugs get.
- Source
- Google Chrome Releases, NVD
Evidence trail
- NVD: View source
CVE-2026-48501
NVDGitHub CLI (gh) versions before 2.93.0 leak your GitHub authentication token to external hosts. When you run gh attestation, gh release verify, or gh release verify-asset, the CLI sends your token to TUF mirror sites (including GitHub Pages domains and Azure Blob Storage) that should never receive it. An attacker controlling one of those mirrors, or sitting in the network path, could capture your token and act as you on GitHub.
- Affected estate
- Developers and CI/CD pipeline operators using GitHub CLI (gh) prior to version 2.93.0, especially if GH_ENTERPRISE_TOKEN is set
- How to check
- Run 'gh version' to confirm the installed version. Search CI pipeline definitions and container images for gh installations.
- Included because
- CVSS 7.4; credential leak; widely used developer tool; affects CI/CD pipelines
- Action
- Upgrade gh to 2.93.0 or later. Rotate exposed tokens, especially GH_ENTERPRISE_TOKEN if it was set.
- Why it matters
- A leaked GitHub token gives an attacker full access to your repos, actions, and any resources the token scopes allow.
- Source
- GitHub advisory
Evidence trail
- NVD: View source
One email, every Wednesday morning.
SubscribeFrom the field notes
From this beat
Read the rest of the field notes →