Technology · PyPI
cbor2 (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 4 vulnerabilities in cbor2 (PyPI): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-26209, was published on 23 March 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About cbor2 (PyPI)
A Python library for encoding and decoding Concise Binary Object Representation (CBOR) data.
Latest cbor2 (PyPI) vulnerabilities
- CVE-2026-26209: PYSEC-2026-2123 - cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) serialization…lowCVSS 3EPSS 0.7%
- CVE-2025-68131: agronholm cbor2 information disclosure via decoder reusemediumCVSS 4EPSS 0.5%
- CVE-2025-64076: cbor2 C extension integer underflow and memory leak in decoderhighCVSS 7.5EPSS 0.5%
- CVE-2024-26134: PYSEC-2024-155 - cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) (RFC 8949)…lowCVSS 3.1EPSS 1.2%
Most severe cbor2 (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2025-64076: cbor2 C extension integer underflow and memory leak in decoderhighCVSS 7.5EPSS 0.5%
- CVE-2025-68131: agronholm cbor2 information disclosure via decoder reusemediumCVSS 4EPSS 0.5%
- CVE-2024-26134: PYSEC-2024-155 - cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) (RFC 8949)…lowCVSS 3.1EPSS 1.2%
- CVE-2026-26209: PYSEC-2026-2123 - cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) serialization…lowCVSS 3EPSS 0.7%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/cbor2.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "cbor2 (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/cbor2, 26 September 2026.