CVE-2020-22083
jsonpickle through 1.4.1 allows remote code execution during deserialization of a malicious payload through the decode() function. Note:…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
jsonpickle through 1.4.1 allows remote code execution during deserialization of a malicious payload through the decode() function. Note: It has been argued that this is expected and clearly documented behaviour. pickle is known to be capable of causing arbitrary code execution, and must not be used with un-trusted data
Timeline
ID reserved
By mitre
- 4 months later
· 4 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.6% · top 6.1% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIjsonpickleGHSA-j66q-qmrc-89rx (opens in a new tab)
References (6)
- https://github.com/j0lt-github/python-deserialization-attack-payload-generator (opens in a new tab)x_refsource_MISCx_transferred
- https://versprite.com/blog/application-security/into-the-jar-jsonpickle-exploitation/ (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/jsonpickle/jsonpickle/issues/332 (opens in a new tab)x_refsource_MISCx_transferred
- https://gist.github.com/j0lt-github/bb543e77a1a10c33cb56cf23d0837874 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/jsonpickle/jsonpickle/issues/332#issuecomment-747807494 (opens in a new tab)x_refsource_MISCx_transferred
- https://access.redhat.com/security/cve/CVE-2020-22083 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-j66q-qmrc-89rx (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-22083)Record last updated .