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CVE-2026-26209 cbor2 has a Denial of Service via Uncontrolled Recursion in cbor2.loads

🗓️ 23 Mar 2026 18:53:10Reported by GoogleType 
osv_cve
 osv_cve
🔗 osv.dev👁 26 Views

cbor2 loads DoS via deeply nested CBOR causing RecursionError and worker crashes; fixed in 5.9.0.

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21 Oct 2026 09:48Current
7.2High risk
Vulners AI Score7.2
CVSS 37.5
EPSS0.00675
26