CVE-2026-2241

low-risk
Published 2026-02-09

A vulnerability was found in janet-lang janet up to 1.40.1. This affects the function os_strftime of the file src/core/os.c. Performing a manipulation results in out-of-bounds read. The attack must be initiated from a local position. The exploit has been made public and could be used. The patch is named 0f285855f0e34f9183956be5f16e045f54626bff. To fix this issue, it is recommended to deploy a patch.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Janet

Affected Vendors

Janet-Lang

References (8)

Product https://github.com/janet-lang/janet/
Patch https://github.com/janet-lang/janet/commit/0f285855f0e34f9183956be5f16e045f54626...
Exploit https://github.com/janet-lang/janet/issues/1701
Exploit https://github.com/janet-lang/janet/issues/1701#event-4446770461
Exploit https://github.com/oneafter/0123/blob/main/ja3/repro
Permissions Required https://vuldb.com/?ctiid.344980
Third Party Advisory https://vuldb.com/?id.344980
Third Party Advisory https://vuldb.com/?submit.753156
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal