Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U H H N 9.1 .0036 29.6 —
AFFECTED Product Versions Fixed curl 8.20.0 – —
TIMELINE Jun 8 Reserved by curl Jul 3 EXPLOIT PUBLISHED — CVE-2026-11564 (curl). Public exploit reference added. Jul 3 Published (CNA: curl)
libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. An easy handle that first uses default native CA trust can continue trusting the native platform store after the application switches that same handle to custom CA material for a later transfer.
| Date | Event | Detail |
|---|---|---|
| June 8, 2026 | Reserved | Reserved by curl |
| July 3, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-11564 (curl). Public exploit reference added. |
| July 3, 2026 | Published | Published (CNA: curl) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| curl | curl | — | 8.20.0 | — |
Authoritative record: CVE-2026-11564 at cve.org
Vendors: curl
Weaknesses: CWE-295
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-11564 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.