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CVE-2026-108147

Potential memory exhaustion in MultiPartParser via base64-encoded file upload

6.9 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.58%Unchanged since Nov 4, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.9

Potential memory exhaustion in MultiPartParser via base64-encoded file upload

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.

Record
CVE-2026-108147
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-770
Updated
2026-11-03
EUVDEUVD-2026-116018 6.9

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.

Record
EUVD-2026-116018
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-9v48-h9hx-rjpv 6.9

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...

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.

Record
GHSA-9v48-h9hx-rjpv
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-770
Updated
2026-11-03
NVD 6.9

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.

Record
CVE-2026-108147
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-770
Updated
2026-11-03
OSVALPINE-CVE-2026-108147 6.9

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.

Record
ALPINE-CVE-2026-108147
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-04
OSV 6.9

Potential memory exhaustion in MultiPartParser via base64-encoded file upload

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.

Record
CVE-2026-108147
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-770
Updated
2026-11-05
OSVDEBIAN-CVE-2026-108147 6.9

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.

Record
DEBIAN-CVE-2026-108147
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-04
OSVUBUNTU-CVE-2026-108147 6.9

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.

Record
UBUNTU-CVE-2026-108147
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
py3-django
Alpine:v3.24
before 5.2.19-r0
5.2.19-r0
python-django
Debian:12
All versions, plus listed versions
3:3.2.19-13:3.2.19-1+deb12u13:3.2.19-1+deb12u1~bpo11+13:3.2.19-1+deb12u23:3.2.20-1
Show 45 moreShow less
3:3.2.20-1.13:3.2.21-13:3.2.25-0+deb12u13:3.2.25-0+deb12u23:3.2.25-0+deb12u33:3.2.25-0+deb12u43:3.2.25-0+deb12u53:3.2.25-0+deb12u63:4.1-13:4.1.1-13:4.1.2-13:4.1.3-13:4.1.4-13:4.1.5-13:4.2-13:4.2.1-13:4.2.10-13:4.2.11-13:4.2.13-13:4.2.14-13:4.2.15-13:4.2.15-1~bpo12+13:4.2.16-13:4.2.17-13:4.2.17-23:4.2.18-13:4.2.18-1~bpo12+13:4.2.19-13:4.2.19-1~bpo12+13:4.2.2-13:4.2.20-13:4.2.20-1~bpo12+13:4.2.21-13:4.2.21-1~bpo12+13:4.2.22-13:4.2.23-13:4.2.24-13:4.2.25-13:4.2.25-23:4.2.26-13:4.2.27-13:4.2.27-23:4.2.28-13:4.2.29-13:4.2.3-1
None known
python-django
Debian:13
All versions, plus listed versions
3:4.2.23-13:4.2.24-13:4.2.25-13:4.2.25-23:4.2.26-1
Show 45 moreShow less
3:4.2.27-0+deb13u13:4.2.27-13:4.2.27-23:4.2.28-0+deb13u13:4.2.28-0+deb13u23:4.2.28-13:4.2.29-13:4.2.30-13:5.0-13:5.0.1-13:5.0.2-13:5.0.3-13:5.0.4-13:5.0.6-13:5.0~alpha1-13:5.0~rc1-13:5.1-13:5.1.1-13:5.1.2-13:5.1.3-13:5.1.4-13:5.1.5-13:5.1~alpha1-13:5.1~beta1-13:5.1~rc1-13:5.2-13:5.2.1-13:5.2.13-13:5.2.14-13:5.2.14-23:5.2.15-13:5.2.15-23:5.2.15-2~bpo13+13:5.2.16-13:5.2.16-1~bpo13+13:5.2.17-13:5.2.17-23:5.2.17-2~bpo13+13:5.2.18-13:5.2.18-23:5.2.19-13:5.2.2-13:5.2.3-13:5.2.4-13:5.2.5-1
None known
python-django
Debian:14
All versions, plus listed versions
3:4.2.23-13:4.2.24-13:4.2.25-13:4.2.25-23:4.2.26-1
Show 45 moreShow less
3:4.2.27-13:4.2.27-23:4.2.28-13:4.2.29-13:4.2.30-13:5.0-13:5.0.1-13:5.0.2-13:5.0.3-13:5.0.4-13:5.0.6-13:5.0~alpha1-13:5.0~rc1-13:5.1-13:5.1.1-13:5.1.2-13:5.1.3-13:5.1.4-13:5.1.5-13:5.1~alpha1-13:5.1~beta1-13:5.1~rc1-13:5.2-13:5.2.1-13:5.2.13-13:5.2.14-13:5.2.14-23:5.2.15-13:5.2.15-23:5.2.15-2~bpo13+13:5.2.16-13:5.2.16-1~bpo13+13:5.2.17-13:5.2.17-23:5.2.17-2~bpo13+13:5.2.18-13:5.2.18-23:5.2.19-13:5.2.2-13:5.2.3-13:5.2.4-13:5.2.5-13:5.2.6-13:5.2~alpha1-13:5.2~beta1-1
None known
python-django
Ubuntu:Pro:14.04:LTS
All versions, plus listed versions
1.5.4-1ubuntu11.6-11.6.1-11.6.1-21.6.1-2ubuntu0.1
Show 30 moreShow less
1.6.1-2ubuntu0.21.6.1-2ubuntu0.31.6.1-2ubuntu0.41.6.1-2ubuntu0.51.6.1-2ubuntu0.61.6.1-2ubuntu0.81.6.1-2ubuntu0.91.6.1-2ubuntu0.101.6.1-2ubuntu0.111.6.1-2ubuntu0.121.6.1-2ubuntu0.131.6.1-2ubuntu0.141.6.1-2ubuntu0.151.6.1-2ubuntu0.161.6.11-0ubuntu11.6.11-0ubuntu1.11.6.11-0ubuntu1.21.6.11-0ubuntu1.31.6.11-0ubuntu1.3+esm11.6.11-0ubuntu1.3+esm21.6.11-0ubuntu1.3+esm31.6.11-0ubuntu1.3+esm41.6.11-0ubuntu1.3+esm51.6.11-0ubuntu1.3+esm61.6.11-0ubuntu1.3+esm71.6.11-0ubuntu1.3+esm81.6.11-0ubuntu1.3+esm91.6.11-0ubuntu1.3+esm101.6.11-0ubuntu1.3+esm111.6.11-0ubuntu1.3+esm12
None known
python-django
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
1.7.9-1ubuntu51.8.5-2ubuntu11.8.7-1ubuntu11.8.7-1ubuntu21.8.7-1ubuntu3
Show 28 moreShow less
1.8.7-1ubuntu41.8.7-1ubuntu51.8.7-1ubuntu5.11.8.7-1ubuntu5.21.8.7-1ubuntu5.41.8.7-1ubuntu5.51.8.7-1ubuntu5.61.8.7-1ubuntu5.71.8.7-1ubuntu5.81.8.7-1ubuntu5.91.8.7-1ubuntu5.101.8.7-1ubuntu5.111.8.7-1ubuntu5.121.8.7-1ubuntu5.131.8.7-1ubuntu5.141.8.7-1ubuntu5.151.8.7-1ubuntu5.15+esm11.8.7-1ubuntu5.15+esm31.8.7-1ubuntu5.15+esm41.8.7-1ubuntu5.15+esm51.8.7-1ubuntu5.15+esm61.8.7-1ubuntu5.15+esm71.8.7-1ubuntu5.15+esm81.8.7-1ubuntu5.15+esm91.8.7-1ubuntu5.15+esm101.8.7-1ubuntu5.15+esm111.8.7-1ubuntu5.15+esm121.8.7-1ubuntu5.15+esm13
None known
python-django
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
1:1.11.4-1ubuntu11:1.11.6-1ubuntu11:1.11.9-1ubuntu11:1.11.11-1ubuntu11:1.11.11-1ubuntu1.1
Show 36 moreShow less
1:1.11.11-1ubuntu1.21:1.11.11-1ubuntu1.31:1.11.11-1ubuntu1.41:1.11.11-1ubuntu1.51:1.11.11-1ubuntu1.61:1.11.11-1ubuntu1.71:1.11.11-1ubuntu1.81:1.11.11-1ubuntu1.91:1.11.11-1ubuntu1.101:1.11.11-1ubuntu1.111:1.11.11-1ubuntu1.121:1.11.11-1ubuntu1.131:1.11.11-1ubuntu1.141:1.11.11-1ubuntu1.151:1.11.11-1ubuntu1.161:1.11.11-1ubuntu1.171:1.11.11-1ubuntu1.181:1.11.11-1ubuntu1.191:1.11.11-1ubuntu1.201:1.11.11-1ubuntu1.211:1.11.11-1ubuntu1.21+esm11:1.11.11-1ubuntu1.21+esm21:1.11.11-1ubuntu1.21+esm31:1.11.11-1ubuntu1.21+esm41:1.11.11-1ubuntu1.21+esm51:1.11.11-1ubuntu1.21+esm61:1.11.11-1ubuntu1.21+esm71:1.11.11-1ubuntu1.21+esm81:1.11.11-1ubuntu1.21+esm91:1.11.11-1ubuntu1.21+esm101:1.11.11-1ubuntu1.21+esm111:1.11.11-1ubuntu1.21+esm121:1.11.11-1ubuntu1.21+esm131:1.11.11-1ubuntu1.21+esm141:1.11.11-1ubuntu1.21+esm151:1.11.11-1ubuntu1.21+esm17
None known
python-django
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
1:1.11.22-1ubuntu12:2.2.6-1ubuntu12:2.2.9-2ubuntu12:2.2.10-12:2.2.10-1ubuntu1
Show 40 moreShow less
2:2.2.11-12:2.2.12-12:2.2.12-1ubuntu0.12:2.2.12-1ubuntu0.22:2.2.12-1ubuntu0.32:2.2.12-1ubuntu0.42:2.2.12-1ubuntu0.52:2.2.12-1ubuntu0.62:2.2.12-1ubuntu0.72:2.2.12-1ubuntu0.82:2.2.12-1ubuntu0.92:2.2.12-1ubuntu0.102:2.2.12-1ubuntu0.112:2.2.12-1ubuntu0.122:2.2.12-1ubuntu0.132:2.2.12-1ubuntu0.142:2.2.12-1ubuntu0.152:2.2.12-1ubuntu0.162:2.2.12-1ubuntu0.172:2.2.12-1ubuntu0.182:2.2.12-1ubuntu0.192:2.2.12-1ubuntu0.202:2.2.12-1ubuntu0.212:2.2.12-1ubuntu0.222:2.2.12-1ubuntu0.232:2.2.12-1ubuntu0.242:2.2.12-1ubuntu0.252:2.2.12-1ubuntu0.262:2.2.12-1ubuntu0.272:2.2.12-1ubuntu0.282:2.2.12-1ubuntu0.292:2.2.12-1ubuntu0.29+esm12:2.2.12-1ubuntu0.29+esm22:2.2.12-1ubuntu0.29+esm32:2.2.12-1ubuntu0.29+esm42:2.2.12-1ubuntu0.29+esm52:2.2.12-1ubuntu0.29+esm62:2.2.12-1ubuntu0.29+esm72:2.2.12-1ubuntu0.29+esm82:2.2.12-1ubuntu0.29+esm10
None known
python-django
Ubuntu:22.04:LTS
All versions, plus listed versions
2:2.2.24-1ubuntu12:3.2.12-22:3.2.12-2ubuntu12:3.2.12-2ubuntu1.12:3.2.12-2ubuntu1.2
Show 26 moreShow less
2:3.2.12-2ubuntu1.32:3.2.12-2ubuntu1.42:3.2.12-2ubuntu1.52:3.2.12-2ubuntu1.62:3.2.12-2ubuntu1.72:3.2.12-2ubuntu1.82:3.2.12-2ubuntu1.92:3.2.12-2ubuntu1.102:3.2.12-2ubuntu1.112:3.2.12-2ubuntu1.122:3.2.12-2ubuntu1.132:3.2.12-2ubuntu1.142:3.2.12-2ubuntu1.152:3.2.12-2ubuntu1.162:3.2.12-2ubuntu1.172:3.2.12-2ubuntu1.182:3.2.12-2ubuntu1.192:3.2.12-2ubuntu1.202:3.2.12-2ubuntu1.212:3.2.12-2ubuntu1.222:3.2.12-2ubuntu1.232:3.2.12-2ubuntu1.242:3.2.12-2ubuntu1.252:3.2.12-2ubuntu1.262:3.2.12-2ubuntu1.272:3.2.12-2ubuntu1.29
None known
python-django
Ubuntu:24.04:LTS
All versions, plus listed versions
3:4.2.4-1ubuntu23:4.2.8-13:4.2.9-13:4.2.11-13:4.2.11-1ubuntu1
Show 17 moreShow less
3:4.2.11-1ubuntu1.13:4.2.11-1ubuntu1.23:4.2.11-1ubuntu1.33:4.2.11-1ubuntu1.43:4.2.11-1ubuntu1.53:4.2.11-1ubuntu1.63:4.2.11-1ubuntu1.73:4.2.11-1ubuntu1.83:4.2.11-1ubuntu1.93:4.2.11-1ubuntu1.103:4.2.11-1ubuntu1.113:4.2.11-1ubuntu1.123:4.2.11-1ubuntu1.133:4.2.11-1ubuntu1.143:4.2.11-1ubuntu1.153:4.2.11-1ubuntu1.163:4.2.11-1ubuntu1.18
None known
python-django
Ubuntu:26.10
All versions, plus listed versions
3:5.2.9-0ubuntu43:5.2.16-13:5.2.17-1
None known
python-django
Ubuntu:26.04:LTS
All versions, plus listed versions
3:5.2.4-1ubuntu23:5.2.4-1ubuntu33:5.2.9-0ubuntu13:5.2.9-0ubuntu23:5.2.9-0ubuntu33:5.2.9-0ubuntu43:5.2.9-0ubuntu4.13:5.2.9-0ubuntu4.3
None known

History

History
RecordedChangedSources
publishedOSV
referencesOSV
affected, aliases, facts, referencesOSV
affectedOSV
affected, aliases, published, referencesOSV
referencesOSV
affected, aliases, referencesNVD, OSV
publishedEUVD
publishedCVE List, EUVD
aliases, referencesGitHub Advisories, NVD
aliases, publishedEUVD
first indexedCVE List

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-108147 is a medium vulnerability (CVSS 6.9) in Djangoproject Django, published November 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 47th percentile. Fixed in py3-django 5.2.19-r0.

References

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Left out here: 104 versions. The JSON record has them.

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