docs: add Cantina subscriptions audit report

[dev-jodee]

Summary

• Add the July 2026 Cantina security review report PDF (audited at d6b3a5dc, all findings addressed at debb4f75)
• Make it the current baseline in audits/AUDIT_STATUS.md and move the prior subscriptions audit to Previous Audits
• Repoint the README Security Audit section to the new report and commits

Test Plan

• Verification commands in audits/AUDIT_STATUS.md resolve against the new SHAs
• Compare links open the expected baseline/post-fix deltas

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Project	Deployment	Actions	Updated (UTC)
solana-subscriptions-program	Ready	Preview	Jul 30, 2026 2:51pm

[greptile-apps]

Greptile Summary

Updates the repository’s security-audit baseline:

• Adds the July 2026 Cantina subscriptions audit report.
• Records the new audited and remediation commits in audits/AUDIT_STATUS.md.
• Moves the prior audit into the historical section.
• Updates README links and verification commands to reference the new baseline.

Confidence Score: 5/5

The PR appears safe to merge, with no concrete inconsistencies or broken references identified in the changed audit documentation.

The report path and commit references are consistent across the README and audit-status document, both commits exist in the expected ancestry order, and the verification ranges are valid.

Important Files Changed

Filename	Overview
README.md	Updates the latest security-review report link and associated baseline and remediation commits consistently.
audits/AUDIT_STATUS.md	Promotes the July 2026 report to the current baseline, preserves the prior audit, and consistently updates comparison links and verification commands.
audits/report-cli-cantina-a1f6fc40-7817-446d-bb88-abd0f2b96106-2026-07-30-solana-foundation-subscriptions.pdf	Adds the audit-report artifact referenced by the updated repository documentation.

_{Reviews (1): Last reviewed commit: "docs: add Cantina subscriptions audit re..." | Re-trigger Greptile}

[github-actions]

Compute Unit Report

Instruction	Samples	CUs	Est Cost (Low) [SOL]	Est Cost (Med) [SOL]	Est Cost (High) [SOL]	Δ Avg vs main
cancel_subscription	28	1838	0.000005000	0.000005073	0.000005919
cancel_subscription_now	5	1873	0.000005000	0.000005074	0.000005936
close_subscription_authority	22	1804	0.000005000	0.000005072	0.000005902
create_fixed_delegation	50	3527	0.000005001	0.000005141	0.000006763
create_plan	141	3501	0.000005001	0.000005140	0.000006750
create_recurring_delegation	35	3561	0.000005001	0.000005142	0.000006780
delete_plan	10	359	0.000005000	0.000005014	0.000005179
init_subscription_authority	231	6310	0.000005001	0.000005252	0.000008155
resume_subscription	4	2041	0.000005000	0.000005081	0.000006020
revoke_abandoned_delegation	3	403	0.000005000	0.000005016	0.000005201
revoke_abandoned_subscription	2	2052	0.000005000	0.000005082	0.000006026
revoke_delegation	24	282	0.000005000	0.000005011	0.000005141
revoke_subscription_authority	8	5076	0.000005001	0.000005203	0.000007538
subscribe	52	6642	0.000005001	0.000005265	0.000008321
transfer_fixed	10	5638	0.000005001	0.000005225	0.000007819
transfer_recurring	21	5749	0.000005001	0.000005229	0.000007874
transfer_subscription	14	5990	0.000005001	0.000005239	0.000007995
update_plan	31	2142	0.000005000	0.000005085	0.000006071

🔺 increase · 🔻 decrease · – unchanged · 🆕 new · 🗑 removed (vs main)

Generated: 2026-07-30