Oracle Critical Patch Updates

https://www.oracle.com/security-alerts/

Oracle quarterly Critical Patch Updates and individual Security Alerts (added 2026-05-08). Quarterly cadence (Jan / Apr / Jul / Oct); also publishes off-cycle Security Alerts for ITW-exploited bugs. 2026-05-08 audit: WebFetch surfaced CPU Apr 2026 + CVE-2026-21992 Mar 20 alert. | 2026-06-20 full audit (v2.62): live=Y, drill=Y. FETCH → bridge: python3 tools/fetch_source.py url https://www.oracle.com/security-alerts/ (listing) then bridge: python3 tools/fetch_source.py url https://www.oracle.com/security-alerts/<cpu-or-alert>.html for the advisory body. AVOID: WebFetch 403s oracle.com, skip WebFetch, go straight to the bridge. Quarterly CPU cadence (Jan/Apr/Jul/Oct) plus off-cycle Security Alerts; don't expect daily change.. | 2026-07-05 admiralty audit: A (HIGH->A) status active->active, first-party Oracle PSIRT, own-product advisories; bridge listing live/drillable. Justified A: vendor PSIRT for its own products. Quarterly cadence; Jul 2026 CPU due mid-month. | 2026-09-20 quality audit: the recorded cadence was WRONG and caused a miss. Oracle runs TWO release lines: the quarterly cumulative Critical Patch Update (CPU, third Tuesday of Jan/Apr/Jul/Oct) AND, since May 2026, a Critical Security Patch Update (CSPU) on the third Tuesday of Feb/Mar/May/Jun/Aug/Sep/Nov/Dec. That is EIGHT further release dates a year. URL pattern: https://www.oracle.com/security-alerts/cspu<mon><year>.html (e.g. cspusep2026.html), alongside cpu<mon><year>.html. The earlier note said 'Quarterly cadence ... don't expect daily change', and the September 2026 CSPU (2026-09-15, six unauthenticated CVSS 10.0 flaws) passed six consecutive fires unremarked although the store had already published the June and August CSPUs. FETCH -> bridge: python3 tools/fetch_source.py extract https://www.oracle.com/security-alerts/cspu<mon><year>.html returns the full risk matrix. Check this source in the week after every third Tuesday, not only in Jan/Apr/Jul/Oct. | 2026-10-19 intel run S1: WebFetch 403; `extract https://www.oracle.com/security-alerts/` and `.../cpuoct2026.html` read direct (the pre-release page exists from the Thursday before the CPU; October 2026 CPU released Tuesday 2026-10-20). Do not probe `cpuoct2026verbose.html` (404, burns reader credit).