CVE-2021-28658: debian debian_linux
Vulnerability summary
CVE-2021-28658 is a medium (CVSS 5.3) vulnerability in debian debian_linux. EPSS estimates a 3.76% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities.
Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 3Timeline
- 06-04-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
In Django 2.2 before 2.2.20, 3.0 before 3.0.14, and 3.1 before 3.1.8, MultiPartParser allowed directory traversal via uploaded files with suitably crafted file names. Built-in upload handlers were not affected by this vulnerability.
CVSS metrics
7 scores · 5 sources · 3 versions- OSV · PypiEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · AlpineEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
3.76%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
Decrease -0.10 pp
From 3.86% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- python-django< 1:1.10.7-2+deb9u12 | < 2:2.2.20-1
- debian_linuxEOL9.0
Alpine1 product
- py3-django< 3.1.8-r0
Djangoproject1 product
- django≥ 2.2, < 2.2.20 | ≥ 3.0, < 3.0.14 | ≥ 3.1, < 3.1.8
Fedoraproject1 product
- fedoraEOL34
PyPI1 product
- django≥ 2.2a1, < 2.2.20 | ≥ 3.0a1, < 3.0.14 | ≥ 3.1a1, < 3.1.8 | ≥ 3.1, < 3.1.8
Ubuntu1 product
- python-django< 1.8.7-1ubuntu5.15 | < 1:1.11.11-1ubuntu1.12 | < 2:2.2.12-1ubuntu0.5 | All versions (No fix recorded)
6 vendors · 7 products
References
21 links- groups.google.com/g/django-announce/c/ePr5j-ngdPUX Refsource MISCWEBMailing ListThird Party Advisory
- www.djangoproject.com/weblog/2021/apr/06/security-releases/X Refsource CONFIRMARTICLEREPORTVendor Advisory
lists.debian.org/debian-lts-announce/2021/04/msg00008.htmlMailing ListX Refsource MLISTWEBThird Party Advisory
- github.com/django/djangoPACKAGE