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Fencer Intel
medium 5.3

CVE-2026-77050 json

Potential denial-of-service vulnerability in get_supported_language_variant()

published last mo. modified last mo. also EUVD-2026-93416

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18. `django.utils.translation.get_supported_language_variant()` is subject to a potential denial-of-service attack when processing many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory. 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 Gleb Lizunov for reporting this issue.

Patch / fix

  • djangoproject Django 5.2.18, 6.0.9, 6.1.2
  • python-django Debian 12 3:3.2.25-0+deb12u6
  • python-django Debian 14 3:5.2.18-1

debian advisories DEBIAN-CVE-2026-77050

  • python-Django SLE Module for Package Hub 15 SP7 4.2.11-150600.3.68.1

suse advisories SUSE-SU-2026:4626-1

  • python-Django openSUSE Leap 16.0 5.2.4-bp160.12.1
  • python-Django openSUSE Tumbleweed 6.1.2-1.1
  • python-Django5 openSUSE Tumbleweed 5.2.18-1.1
  • python-Django4 openSUSE Tumbleweed 4.2.30-6.1

opensuse advisories openSUSE-SU-2026:22196-1openSUSE-SU-2026:12103-1openSUSE-SU-2026:12095-1openSUSE-SU-2026:12086-1

  • py3-django Alpine 3.24 5.2.18-r0

alpine advisories ALPINE-CVE-2026-77050

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-77050 updated cvss 5.3

django: Denial of service via unbounded caching of long language codes in get_supported_language_variant()

  • Red Hat Ansible Automation Platform 2 python-django 4.2.24-1.el9ap, python3x-django 4.2.24-1.el8ap, python3.11-django 4.2.27-2.el9ap, python3.12-django 5.2.17-1.el9ap, automation-controller 4.7.17-1.el9ap, ansible-automation-platform-24/hub-rhel8, +25 more
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat Discovery 2 discovery/discovery-server-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenStack Platform 13 (Queens) python2-django, python-django 4.2.24-1.el9ap, python-django-bash-completion Red Hat OpenStack Platform 16.2 python-django20, python3-django20, rhosp-rhel8/openstack-horizon, python-django20-bash-completion Red Hat OpenStack Platform 17.1 python3-django, python-django 4.2.24-1.el9ap, rhosp-rhel9/openstack-horizon
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 18.0 python-django 4.2.24-1.el9ap, rhoso/openstack-horizon-rhel9 Red Hat Satellite 6 python-django, python2-django, python-django 4.2.24-1.el9ap, python-django-bash-completion, python3.12-django 5.2.17-1.el9ap, satellite/iop-advisor-backend-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Update Infrastructure 4 for Cloud Providers python-django 4.2.24-1.el9ap
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Update Infrastructure 5 rhui5/rhua-rhel9, rhui5/rhua-tp-rhel9 Red Hat Self-service automation portal 2 ansible-automation-platform/bootc-automation-portal-rhel9
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CNA 4.0 6.9 CVSS: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

Affected products

  • djangoproject Django

Classification

Weakness
  • CWE-789 Memory Allocation with Excessive Size Value
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.