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.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Local

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
janet-lang janet affected
Version Status Constraints
1.0 affected —
1.1 affected —
1.2 affected —
1.3 affected —
1.4 affected —
1.5 affected —
1.6 affected —
1.7 affected —
1.8 affected —
1.9 affected —
1.10 affected —
1.11 affected —
1.12 affected —
1.13 affected —
1.14 affected —
1.15 affected —
1.16 affected —
1.17 affected —
1.18 affected —
1.19 affected —
1.20 affected —
1.21 affected —
1.22 affected —
1.23 affected —
1.24 affected —
1.25 affected —
1.26 affected —
1.27 affected —
1.28 affected —
1.29 affected —
1.30 affected —
1.31 affected —
1.32 affected —
1.33 affected —
1.34 affected —
1.35 affected —
1.36 affected —
1.37 affected —
1.38 affected —
1.39 affected —
1.40 affected —
1.41.0 affected —

No data.

No data.

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Vendors Products
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Janet Subscribe

Project Subscriptions

Vendors Products
Janet-lang Subscribe
Janet Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/biniamf/pocs/tree/main/janet-marsh-unmarshal-intovf cve-icon cve-icon
https://github.com/janet-lang/janet/ cve-icon cve-icon
https://github.com/janet-lang/janet/commit/d9b1d711ea1fde52ac73a82088b512a3e17bad0d cve-icon cve-icon
https://github.com/janet-lang/janet/issues/1744 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-10268 cve-icon cve-icon
https://vuldb.com/submit/825075 cve-icon cve-icon
https://vuldb.com/vuln/367547 cve-icon cve-icon
https://vuldb.com/vuln/367547/cti cve-icon cve-icon
History

Mon, 01 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 01 Jun 2026 17:00:00 +0000

Type Values Removed Values Added
Description 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.
Title janet-lang janet marsh.c unmarshal_one_fiber integer overflow
First Time appeared Janet-lang
Janet-lang janet
Weaknesses CWE-189
CWE-190
CPEs cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:*
Vendors & Products Janet-lang
Janet-lang janet
References
Metrics cvssV2_0

{'score': 1.7, 'vector': 'AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 3.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 4.8, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-06-01T17:50:51.836Z

Reserved: 2026-05-31T14:06:38.539Z

Link: CVE-2026-10268

cve-icon Vulnrichment

Updated: 2026-06-01T17:46:34.088Z

cve-icon NVD

Status : Deferred

Published: 2026-06-01T17:16:42.897

Modified: 2026-06-01T17:57:16.380

Link: CVE-2026-10268

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T18:30:06Z

Weaknesses