CVE-2026-2242: medium-severity vulnerability in janet-lang janet
janet-lang janet specials.c janetc_if out-of-bounds
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.2%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
janet-lang · janetRelated CVEs — janet-lang janet
In the same product, most dangerous first.
CVE-2026-2869MEDIUMjanet-lang janet handleattr specials.c janetc_varset out-of-boundsEPSS 0.2%CVE-2026-2241MEDIUMjanet-lang janet os.c os_strftime out-of-boundsEPSS 0.2%CVE-2026-2240MEDIUMjanet-lang janet compile.c janetc_pop_funcdef out-of-boundsEPSS 0.2%CVE-2026-10268MEDIUMjanet-lang janet marsh.c unmarshal_one_fiber integer overflowEPSS 0.1%CVE-2026-10267MEDIUMjanet-lang janet debug.c doframe out-of-boundsEPSS 0.1%
References
https://github.com/janet-lang/janet/https://github.com/janet-lang/janet/commit/c43e06672cd9dacf2122c99f362120a17c34b391https://github.com/janet-lang/janet/issues/1700https://github.com/janet-lang/janet/issues/1702https://github.com/oneafter/0123/blob/main/ja2/reprohttps://vuldb.com/?ctiid.344981https://vuldb.com/?id.344981https://vuldb.com/?submit.754495