Potential memory exhaustion in MultiPartParser via base64-encoded file upload
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 6.1.3, 6.0.10, 5.2.19
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 6.1.3, 6.0.10, 5.2.19.
- Exploitation0/40No signal
- Exposure20/25No login or user action needed per the CVSS vector, CISA rates it automatable · Data gap: No advisory context yet
- Reach20/20django: 11.9M downloads a week
- Severity5.3/10CVSS 5.3
- No patch0/5No signal
What would change the score
- Would score about 90 if added to CISA KEV
- Would score about 85 if CISA's SSVC rates exploitation active
- Would score about 50 if advisories confirm default setups are exposed
CVE-2026-108147 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects Django; fixed in 6.1.3, 6.0.10 and 5.2.19.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 45/100 · provisional
- Fix
- Fixed in 6.1.3, 6.0.10, 5.2.19
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
Django, the Python web framework, is affected in its multipart form and file upload parser, where base64-encoded file uploads can consume excessive server memory. This could let an attacker cause memory exhaustion, potentially slowing or crashing the application.
Read the original description
An issue was discovered in Django 6.1 before 6.1.3, 6.0.4 before 6.0.10, and 5.2.13 before 5.2.19. `django.http.multipartparser.MultiPartParser` is subject to excessive memory consumption when processing multipart file uploads with base64 `Content-Transfer-Encoding`, which could be buffered entirely in memory before being passed to upload handlers. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Ignacy Kujawa for reporting this issue.
Impact
- Widely used
django has 11.9m weekly downloads.Source: pypistats.org
12.1k packages depend on django.Source: deps.dev
What to do
Upgrade to a fixed version: 6.1.3, 6.0.10, 5.2.19.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- djangoPyPI
From 6.1 · fixed in 6.1.3; From 6.0.4 · fixed in 6.0.10; From 5.2.13 · fixed in 5.2.19
Evidence 7
- Advisory
- Advisory
- Patch
- Patch
- Patch
Show all 7 sourcesShow fewer sources
- Patch
- Link
Corrections
None so far.
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Questions about CVE-2026-108147
Is CVE-2026-108147 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-108147?
django (PyPI): from 6.1 before 6.1.3; from 6.0.4 before 6.0.10; from 5.2.13 before 5.2.19.Source: cve.now feed data
How do I fix CVE-2026-108147?
Upgrade to a fixed version: 6.1.3, 6.0.10, 5.2.19.Source: cve.now feed data