CVE-2021-31542

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 5.3%, top 8% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

In Django 2.2 before 2.2.21, 3.1 before 3.1.9, and 3.2 before 3.2.1, MultiPartParser, UploadedFile, and FieldFile allowed directory traversal via uploaded files with suitably crafted file names.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
92%
KEV
Not listed

Published

May 5, 2021

Last Modified

November 21, 2024

References (22)

Vendor Advisories for CVE-2021-31542(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3-django (2:2.2.20-1ubuntu0.1) @ hirsute2026-05-26ubuntu
ubuntupython3-django (1.8.7-1ubuntu5.15+esm1) @ xenial2026-05-26ubuntu
redhatpython-django20-0:2.0.13-16.el8ost.12021-12-09redhat
redhatpython3-django-0:2.2.24-1.el7pc2021-11-16redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(7 across 7 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
python-django1:1.11.21-1 ... 1:1.11.29-1~deb10u1 (16 versions)1:1.11.29-1+deb10u11—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
python-django—2:2.2.21-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
python-django—2:2.2.21-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
python-django—2:2.2.21-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
python-django—2:2.2.21-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
python-django1:1.10.7-2 ... 1:1.10.7-2+deb9u9 (13 versions)1:1.10.7-2+deb9u13—
PyPI(1)
PackageVulnerable rangeFixed inDependents
django2.2 ... 3.2 (31 versions)3.2.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 153 total refreshes for this CVE.

  1. 2026-09-18 19:23 UTCEPSS rescore
  2. 2026-09-17 19:23 UTCEPSS rescore
  3. 2026-09-17 19:23 UTCEPSS rescore
  4. 2026-09-16 14:05 UTCEPSS rescore
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  11. 2026-09-07 15:58 UTCEPSS rescore
  12. 2026-09-06 17:43 UTCOSV refresh
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  1. 2026-08-26 14:42 UTCEPSS rescore
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  5. 2026-08-21 23:46 UTCEPSS rescore
  6. 2026-08-20 22:52 UTCEPSS rescore
  7. 2026-08-20 03:45 UTCOSV refresh
  8. 2026-08-19 17:01 UTCEPSS rescore
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  21. 2026-08-06 13:43 UTCEPSS rescore
  22. 2026-08-05 19:14 UTCEPSS rescore
  23. 2026-08-04 22:41 UTCOSV refresh
  24. 2026-08-04 15:06 UTCEPSS rescore
  25. 2026-08-04 10:34 UTCEPSS rescore
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  27. 2026-08-02 02:24 UTCEPSS rescore
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  37. 2026-07-23 02:00 UTCEG score recompute
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  39. 2026-07-22 14:06 UTCEPSS rescore
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  46. 2026-07-19 02:27 UTCEPSS rescore
  47. 2026-07-18 20:59 UTCOSV refresh
  48. 2026-07-18 10:02 UTCEPSS rescore
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  50. 2026-07-16 17:00 UTCEPSS rescore
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  67. 2026-07-01 15:04 UTCEPSS rescore
  68. 2026-07-01 04:18 UTCOSV refresh
  69. 2026-06-30 23:20 UTCEPSS rescore
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  74. 2026-06-27 03:06 UTCEPSS rescore
  75. 2026-06-25 13:48 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2021-31542?
CVE-2021-31542 is a high vulnerability published on May 5, 2021. In Django 2.2 before 2.2.21, 3.1 before 3.1.9, and 3.2 before 3.2.1, MultiPartParser, UploadedFile, and FieldFile allowed directory traversal via uploaded files with suitably crafted file names.
When was CVE-2021-31542 disclosed?
CVE-2021-31542 was first published in the National Vulnerability Database on May 5, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-31542 actively exploited?
CVE-2021-31542 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 7.8% of all scored CVEs.
What is the CVSS score of CVE-2021-31542?
CVE-2021-31542 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-31542?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-31542, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-31542

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