CVE-2026-2242
Description
A vulnerability was determined in janet-lang janet up to 1.40.1. This impacts the function janetc_if of the file src/core/specials.c. Executing a manipulation can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called c43e06672cd9dacf2122c99f362120a17c34b391. It is advisable to implement a patch to correct this issue.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| janet-lang | janet | {"endIncluding":"1.40.1"} | |
References
- https://github.com/janet-lang/janet/
- https://github.com/janet-lang/janet/commit/c43e06672cd9dacf2122c99f362120a17c34b391
- https://github.com/janet-lang/janet/issues/1700
- https://github.com/janet-lang/janet/issues/1702
- https://github.com/oneafter/0123/blob/main/ja2/repro
- https://vuldb.com/?ctiid.344981
- https://vuldb.com/?id.344981
- https://vuldb.com/?submit.754495
CWEs
CWE-119 CWE-125
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.