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.
References
| Link | Resource |
|---|---|
| https://github.com/janet-lang/janet/ | Product |
| https://github.com/janet-lang/janet/commit/0f285855f0e34f9183956be5f16e045f54626bff | Patch |
| https://github.com/janet-lang/janet/issues/1701 | Exploit Issue Tracking |
| https://github.com/janet-lang/janet/issues/1701#event-4446770461 | Exploit Issue Tracking |
| https://github.com/oneafter/0123/blob/main/ja3/repro | Exploit |
| https://vuldb.com/?ctiid.344980 | Permissions Required VDB Entry |
| https://vuldb.com/?id.344980 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.753156 | Third Party Advisory VDB Entry |
Configurations
History
25 Feb 2026, 14:40
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:* | |
| First Time |
Janet-lang janet
Janet-lang |
|
| Summary |
|
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| References | () https://github.com/janet-lang/janet/ - Product | |
| References | () https://github.com/janet-lang/janet/commit/0f285855f0e34f9183956be5f16e045f54626bff - Patch | |
| References | () https://github.com/janet-lang/janet/issues/1701 - Exploit, Issue Tracking | |
| References | () https://github.com/janet-lang/janet/issues/1701#event-4446770461 - Exploit, Issue Tracking | |
| References | () https://github.com/oneafter/0123/blob/main/ja3/repro - Exploit | |
| References | () https://vuldb.com/?ctiid.344980 - Permissions Required, VDB Entry | |
| References | () https://vuldb.com/?id.344980 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.753156 - Third Party Advisory, VDB Entry |
09 Feb 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-09 18:16
Updated : 2026-02-25 14:40
NVD link : CVE-2026-2241
Mitre link : CVE-2026-2241
CVE.ORG link : CVE-2026-2241
JSON object : View
Products Affected
janet-lang
- janet
