CVE-2020-28493

Katalog CVE

CVSS 5.3 · Medium EPSS 3,5%

Kerentanan Uncontrolled Resource Consumption pada palletsprojects jinja, fedoraproject fedora. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.

Rincian

Terbit di NVD

1 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-400: Uncontrolled Resource Consumption

EPSS (30 hari)

3,5% peluang dieksploitasi; lebih tinggi dari 89,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/pallets/jinja/pull/1343 patch · advisory pihak ketiga
• https://security.gentoo.org/glsa/202107-19 advisory pihak ketiga
• https://snyk.io/vuln/SNYK-PYTHON-JINJA2-1012994 exploit · advisory pihak ketiga
• https://github.com/pallets/jinja/blob/ab81fd9c277900c85da0c322a2ff9d68a235b2e6/src/jinja2/utils.py%23L20 broken link
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVAKCOO7VBVUB...