PT-2026-45445 · Janet Lang · Janet

Biniam · Published 2026-06-01 · Updated 2026-06-01 · CVE-2026-10268

Mitre

CVSS v3.1

3.3

Low

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

A weakness has been identified in janet-lang janet up to 1.41.0. This vulnerability affects the function unmarshal one fiber of the file src/core/marsh.c. Executing a manipulation can lead to integer overflow. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. This patch is called d9b1d711ea1fde52ac73a82088b512a3e17bad0d. A patch should be applied to remediate this issue.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

CWE-189

Related Identifiers

CVE-2026-10268

Affected Products

Janet

References · 9

• 🔥 https://github.com/biniamf/pocs/tree/main/janet-marsh-unmarshal-intovf · Exploit
• https://github.com/janet-lang/janet/commit/d9b1d711ea1fde52ac73a82088b512a3e17bad0d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-10268 · Security Note
• https://github.com/janet-lang/janet/issues/1744 · Note
• https://vuldb.com/vuln/367547/cti · Note
• https://vuldb.com/submit/825075 · Note
• https://vuldb.com/vuln/367547 · Note
• https://vuldb.com/cve/CVE-2026-10268 · Note
• https://github.com/janet-lang/janet · Note