CVE-2022-30763 json
Janet before 1.22.0 mishandles arrays.
published 2022-05-16 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52590
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
Janet before 1.22.0 mishandles arrays.
Patch / fix
- janet-lang janet 1.22.0
- janet Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 1.22.0-r0
alpine advisories ALPINE-CVE-2022-30763
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blog.convisoappsec.com https://blog.convisoappsec.com/en/bug-hunting-in-the-janet-language-interpreter/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-129 Improper Validation of Array Index
References
-
blog.convisoappsec.com
/en/bug-hunting-in-the-janet-language-interpreter/
exploit, technical-description, third-party-advisory
-
github.com
/janet-lang/janet/compare/v1.21.1...v1.22.0
third-party-advisory
-
github.com
/janet-lang/janet/releases/tag/v1.22.0
release-notes, third-party-advisory
Sources
- CVE List CVE-2022-30763
- NVD CVE-2022-30763
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.