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Fencer Intel
high 7.5

CVE-2022-30763 json

Janet before 1.22.0 mishandles arrays.

published 4y ago modified 4mo 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

Is CVE-2022-30763 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

Sources

Fencer Intel 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.