CVE-2020-284935.3MediumCWE-400

CVE-2020-28493: Regular Expression Denial of Service (ReDoS)

Palletsprojects · jinja2

Fixed in 2.11.3 · Affected: Palletsprojects jinja2 before 2.11.3 · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

3.6%probability of exploitation in the next 30 days

89th percentile

050100

Higher than 89% of scored CVEs

5.3MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

jinja20.0.0; before 2.11.3

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Uncontrolled Resource Consumption · Denial of Service
Vendor: Palletsprojects
Published: February 2021
Band: Possible (1 to 10%), February 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2020-28493 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.