CVE-2021-41110: commonwl cwlviewer

csirt@kutim:~/threat-intel/cve/CVE-2021-41110

CVSS 9.8 · Critical EPSS 2,8%

Kerentanan Deserialization of Untrusted Data pada commonwl cwlviewer. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

cwlviewer is a web application to view and share Common Workflow Language workflows. Versions prior to 1.3.1 contain a Deserialization of Untrusted Data vulnerability. Commit number f6066f09edb70033a2ce80200e9fa9e70a5c29de (dated 2021-09-30) contains a patch. There are no available workarounds aside from installing the patch. The SnakeYaml constructor, by default, allows any data to be parsed. To fix the issue the object needs to be created with a `SafeConstructor` object, as seen in the patch.

Rincian

Terbit di NVD: 1 Oktober 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-502: Deserialization of Untrusted Data
EPSS (30 hari): 2,8% peluang dieksploitasi; lebih tinggi dari 86,1% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
commonwl	cwlviewer	Semua versi sebelum 1.3.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/common-workflow-language/cwlviewer/commit/f6066f09edb70033a2ce80200e9fa9e70a5c29de patch · advisory pihak ketiga
https://github.com/common-workflow-language/cwlviewer/security/advisories/GHSA-7g7j-f5g3-fqp7 patch · advisory pihak ketiga
https://www.fatalerrors.org/a/analysis-of-the-snakeyaml-deserialization-in-java-security.html exploit · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.