PatchTheCVEcbor2 vulnerabilities and fixes
Recent CVEs affecting cbor2, with upgrade or downgrade steps. 1 tracked.
cbor2 has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-03-23. Highest priority: CVE-2026-26209 (score 45/100).
- CVE-2026-26209 HIGH 7.5 UPGRADE cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) serialization format
FAQ
How do I fix cbor2 vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is cbor2 being exploited right now?
None of the tracked cbor2 CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which cbor2 CVE should I patch first?
CVE-2026-26209 currently ranks highest (45/100): cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) serialization format.