Tuesday, May 5, 2026 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Tuesday's disclosures center on enterprise data infrastructure, with critical flaws affecting Apache Polaris, Apache Iceberg, Redis, and Google Cloud Storage alongside multiple WordPress plugin vulnerabilities. The brief includes 35 critical CVEs (up 400% from 7) and 65 high-priority CVEs (up 81% from 36 the prior day). Notable entries include CVE-2026-42811 (CVSS 9.9) in Google Cloud Storage, CVE-2026-42812 (CVSS 9.9) in Apache Iceberg, and CVE-2026-42088 (CVSS 9.6) in Redis, indicating concentrated risk across cloud storage and analytics layers. Remote code execution and authentication bypass patterns dominate, with WordPress ecosystems contributing several CVSS 9.8 issues and OpenC3 COSMOS exposing operational technology environments. Nine CVEs are listed in CISA KEV, including Microsoft Defender, SimpleHelp, and ConnectWise ScreenConnect; with 0% patch availability reported in this dataset, defenders should prioritize compensating controls and vendor advisories.

  • Apache data platforms (Polaris, Iceberg) and Google Cloud Storage anchor today's critical disclosures with CVSS 9.9 issues
  • Critical CVEs reached 35, a 400% increase from yesterday's 7
  • High-priority CVEs reached 65, an 81% increase from yesterday's 36
  • Remote code execution and authentication bypass dominate, affecting Redis, WordPress plugins, and OpenC3 COSMOS
  • Patch availability stands at 0% across the disclosed set, requiring mitigations and monitoring while vendors release fixes
  • Nine CVEs are in CISA KEV, including Microsoft Defender, SimpleHelp, ConnectWise ScreenConnect, and Samsung MagicINFO

Immediate action: Prioritize Apache Polaris, Apache Iceberg, Redis, and Google Cloud Storage deployments for immediate review, alongside WordPress sites running vulnerable plugins and any SimpleHelp, ScreenConnect, or Samsung MagicINFO instances flagged in KEV. With 0% patch availability in this dataset, apply vendor mitigations, restrict network exposure, and monitor for exploitation indicators until fixes ship.

How to read this brief

CVSS score (e.g. 9.1) β€” severity from 0–10. Red marks critical (9+), orange high (7–8.9).

Exploitability β€” how hard the flaw is to attack, read from the CVSS vector:

  • Network / Adjacent / Local / Physical β€” how close an attacker must get. Network means reachable over the internet.
  • No / Low / High privileges β€” the access they need first. No privileges means no login required.
  • No interaction / User interaction β€” whether a victim has to do something (open a file, click a link). No interaction means fully automatable.

The lower the bar on all three, the easier to exploit at scale β€” β€œNetwork Β· No privileges Β· No interaction” is the worst case: hit from anywhere, no credentials, no victim action.

Actively exploited β€” confirmed under attack in the wild (CISA’s Known Exploited Vulnerabilities catalog). Prioritize these regardless of score.

EPSS Β· Nth percentile β€” FIRST.org’s estimated chance a flaw is exploited within 30 days. We flag it only in the top 10% β€” a statistical signal it’s unusually likely to be targeted, separate from whether attacks are confirmed.

πŸ’‘ Tip: Swipe CVE cards left to ⭐ star, right to ❌ remove

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