CVE-2025-45768 json
pyjwt v2.10.1 was discovered to contain weak encryption.
published 2025-07-31 15 mo ago modified 2026-06-17 4 mo ago also PYSEC-2025-183 , EUVD-2025-23303
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
pyjwt v2.10.1 was discovered to contain weak encryption. NOTE: this is disputed by the Supplier because the key length is chosen by the application that uses the library (admittedly, library users may benefit from a minimum value and a mechanism for opting in to strict enforcement).
Patch / fix
- pyjwt Debian 14 2.11.0-2
debian advisories DEBIAN-CVE-2025-45768
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 15 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H |
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H |
| OSV | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | pyjwt | <=2.10.1 |
no fix listed |
Classification
- Weakness
-
- CWE-311 Missing Encryption of Sensitive Data
References
-
github.com
/jpadilla
product, web
-
github.com
/jpadilla/pyjwt
product, package
-
gist.github.com
/ZupeiNie/6f65e564f2067b876321d3dfdbb76569
issue-tracking, report
Sources
- CVE List CVE-2025-45768
- NVD CVE-2025-45768
- OSV PYSEC-2025-183
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.