CVE-2026-3387: medium-severity vulnerability in wren-lang wren
wren-lang wren wren_compiler.c getByteCountForArguments null pointer dereference
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 has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
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
wren-lang · wrenRelated CVEs — wren-lang wren
In the same product, most dangerous first.
CVE-2026-2657MEDIUMwren-lang wren Error Message wren_compiler.c printError stack-based overflowEPSS 0.3%CVE-2026-3386MEDIUMwren-lang wren wren_compiler.c emitOp out-of-boundsEPSS 0.2%CVE-2026-3385MEDIUMwren-lang wren wren_compiler.c resolveLocal recursionEPSS 0.2%CVE-2026-2858MEDIUMwren-lang wren Source File wren_compiler.c peekChar out-of-boundsEPSS 0.1%