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CVE-2026-3387

wren-lang wren wren_compiler.c getByteCountForArguments null pointer dereference

CVSS 4.8 MEDIUMEPSS 0.2%CWE-404CWE-476
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.8EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
01 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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 · wren

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References
https://github.com/oneafter/0122/blob/main/i1220/reprohttps://github.com/wren-lang/wren/https://github.com/wren-lang/wren/issues/1220https://vuldb.com/?ctiid.348273https://vuldb.com/?id.348273https://vuldb.com/?submit.761312