CVE-2026-2657: medium-severity vulnerability in wren-lang wren
wren-lang wren Error Message wren_compiler.c printError stack-based overflow
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.3%
A vulnerability has been found in wren-lang wren up to 0.4.0. This impacts the function printError of the file src/vm/wren_compiler.c of the component Error Message Handler. Such manipulation leads to stack-based buffer overflow. An attack has to be approached locally. 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-2026-3386MEDIUMwren-lang wren wren_compiler.c emitOp out-of-boundsEPSS 0.2%CVE-2026-3385MEDIUMwren-lang wren wren_compiler.c resolveLocal recursionEPSS 0.2%CVE-2026-3387MEDIUMwren-lang wren wren_compiler.c getByteCountForArguments null pointer dereferenceEPSS 0.2%CVE-2026-2858MEDIUMwren-lang wren Source File wren_compiler.c peekChar out-of-boundsEPSS 0.1%