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CVE-2026-6907

CVE-2026-6907 · Potential exposure of private data due to incorrect handling of Vary: * in UpdateCacheMiddleware

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. `django.middleware.cache.UpdateCacheMiddleware` erroneously caches requests where the `Vary` header contained an asterisk (`'*'`). This can lead to private data being stored and served. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Ahmad Sadeddin for reporting this issue.

CVSS 2.3 · Low · EPSS 0.4% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • django

    Versions
    • ≥ 6.0, < 6.0.5: Affected (python)
    • 6.0.5: Not affected (python)
    • ≥ 5.2, < 5.2.14: Affected (python)
    • 5.2.14: Not affected (python)

    Update to 5.2.14; Update to 6.0.5

  • python-django Debian:12

    Versions
    • 3:3.2.19-1
    • 3:3.2.19-1+deb12u1
    • 3:3.2.19-1+deb12u1~bpo11+1
    • 3:3.2.19-1+deb12u2
    • 3:3.2.20-1
    • 3:3.2.20-1.1
    • 3:3.2.21-1
    • 3:3.2.25-0+deb12u1
    • 3:3.2.25-0+deb12u2
    • 3:3.2.25-0+deb12u3
    • 3:3.2.25-0+deb12u4
    • 3:3.2.25-0+deb12u5
    • 3:4.1-1
    • 3:4.1.1-1
    • 3:4.1.2-1
    • 3:4.1.3-1
    • 3:4.1.4-1
    • 3:4.1.5-1
    • 3:4.2-1
    • 3:4.2.1-1
    • 3:4.2.10-1
    • 3:4.2.11-1
    • 3:4.2.13-1
    • 3:4.2.14-1
    • 3:4.2.15-1
    • 3:4.2.15-1~bpo12+1
    • 3:4.2.16-1
    • 3:4.2.17-1
    • 3:4.2.17-2
    • 3:4.2.18-1
    • 3:4.2.18-1~bpo12+1
    • 3:4.2.19-1
    • 3:4.2.19-1~bpo12+1
    • 3:4.2.2-1
    • 3:4.2.20-1
    • 3:4.2.20-1~bpo12+1
    • 3:4.2.21-1
    • 3:4.2.21-1~bpo12+1
    • 3:4.2.22-1
    • 3:4.2.23-1
    • 3:4.2.24-1
    • 3:4.2.25-1
    • 3:4.2.25-2
    • 3:4.2.26-1
    • 3:4.2.27-1
    • 3:4.2.27-2
    • 3:4.2.28-1
    • 3:4.2.29-1
    • 3:4.2.3-1
    • 3:4.2.30-1
    • 3:4.2.4-1
    • 3:4.2.5-1
    • 3:4.2.5-2
    • 3:4.2.6-1
    • 3:4.2.8-1
    • 3:4.2.9-1
    • 3:4.2~alpha1-1
    • 3:4.2~beta1-1
    • 3:4.2~rc1-1
    • 3:5.0-1
    • 3:5.0.1-1
    • 3:5.0.2-1
    • 3:5.0.3-1
    • 3:5.0.4-1
    • 3:5.0.6-1
    • 3:5.0~alpha1-1
    • 3:5.0~rc1-1
    • 3:5.1-1
    • 3:5.1.1-1
    • 3:5.1.2-1
    • 3:5.1.3-1
    • 3:5.1.4-1
    • 3:5.1.5-1
    • 3:5.1~alpha1-1
    • 3:5.1~beta1-1
    • 3:5.1~rc1-1
    • 3:5.2-1
    • 3:5.2.1-1
    • 3:5.2.13-1
    • 3:5.2.14-1
    • 3:5.2.14-2
    • 3:5.2.15-1
    • 3:5.2.15-2
    • 3:5.2.15-2~bpo13+1
    • 3:5.2.16-1
    • 3:5.2.16-1~bpo13+1
    • 3:5.2.17-1
    • 3:5.2.17-2
    • 3:5.2.2-1
    • 3:5.2.3-1
    • 3:5.2.4-1
    • 3:5.2.5-1
    • 3:5.2.6-1
    • 3:5.2~alpha1-1
    • 3:5.2~beta1-1
    • 3:5.2~rc1-1
    • 3:6.0-1
    • 3:6.0.1-1
    • 3:6.0.2-1
    • 3:6.0.3-1
    • 3:6.0.4-1
    • 3:6.0.5-1
    • 3:6.0.6-1
    • 3:6.0~alpha1-1
    • 3:6.0~beta1-1
    • 3:6.0~rc1-1
    • 3:6.1-1
    • 3:6.1.1-1
    • 3:6.1~beta1-1
    • 3:6.1~rc1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Debian:13

    Versions
    • 3:4.2.23-1
    • 3:4.2.24-1
    • 3:4.2.25-1
    • 3:4.2.25-2
    • 3:4.2.26-1
    • 3:4.2.27-0+deb13u1
    • 3:4.2.27-1
    • 3:4.2.27-2
    • 3:4.2.28-0+deb13u1
    • 3:4.2.28-0+deb13u2
    • 3:4.2.28-1
    • 3:4.2.29-1
    • 3:4.2.30-1
    • 3:5.0-1
    • 3:5.0.1-1
    • 3:5.0.2-1
    • 3:5.0.3-1
    • 3:5.0.4-1
    • 3:5.0.6-1
    • 3:5.0~alpha1-1
    • 3:5.0~rc1-1
    • 3:5.1-1
    • 3:5.1.1-1
    • 3:5.1.2-1
    • 3:5.1.3-1
    • 3:5.1.4-1
    • 3:5.1.5-1
    • 3:5.1~alpha1-1
    • 3:5.1~beta1-1
    • 3:5.1~rc1-1
    • 3:5.2-1
    • 3:5.2.1-1
    • 3:5.2.13-1
    • 3:5.2.14-1
    • 3:5.2.14-2
    • 3:5.2.15-1
    • 3:5.2.15-2
    • 3:5.2.15-2~bpo13+1
    • 3:5.2.16-1
    • 3:5.2.16-1~bpo13+1
    • 3:5.2.17-1
    • 3:5.2.17-2
    • 3:5.2.2-1
    • 3:5.2.3-1
    • 3:5.2.4-1
    • 3:5.2.5-1
    • 3:5.2.6-1
    • 3:5.2~alpha1-1
    • 3:5.2~beta1-1
    • 3:5.2~rc1-1
    • 3:6.0-1
    • 3:6.0.1-1
    • 3:6.0.2-1
    • 3:6.0.3-1
    • 3:6.0.4-1
    • 3:6.0.5-1
    • 3:6.0.6-1
    • 3:6.0~alpha1-1
    • 3:6.0~beta1-1
    • 3:6.0~rc1-1
    • 3:6.1-1
    • 3:6.1.1-1
    • 3:6.1~beta1-1
    • 3:6.1~rc1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Debian:14

    Versions
    • 3:4.2.23-1
    • 3:4.2.24-1
    • 3:4.2.25-1
    • 3:4.2.25-2
    • 3:4.2.26-1
    • 3:4.2.27-1
    • 3:4.2.27-2
    • 3:4.2.28-1
    • 3:4.2.29-1
    • 3:4.2.30-1
    • 3:5.0-1
    • 3:5.0.1-1
    • 3:5.0.2-1
    • 3:5.0.3-1
    • 3:5.0.4-1
    • 3:5.0.6-1
    • 3:5.0~alpha1-1
    • 3:5.0~rc1-1
    • 3:5.1-1
    • 3:5.1.1-1
    • 3:5.1.2-1
    • 3:5.1.3-1
    • 3:5.1.4-1
    • 3:5.1.5-1
    • 3:5.1~alpha1-1
    • 3:5.1~beta1-1
    • 3:5.1~rc1-1
    • 3:5.2-1
    • 3:5.2.1-1
    • 3:5.2.13-1
    • 3:5.2.2-1
    • 3:5.2.3-1
    • 3:5.2.4-1
    • 3:5.2.5-1
    • 3:5.2.6-1
    • 3:5.2~alpha1-1
    • 3:5.2~beta1-1
    • 3:5.2~rc1-1
    Affected ranges
    • ECOSYSTEM: < 3:5.2.14-1

    Update to 3:5.2.14-1

  • django PyPI

    Versions
    • 6.0
    • 6.0.1
    • 6.0.2
    • 6.0.3
    • 6.0.4
    Affected ranges
    • ECOSYSTEM: ≥ 6.0, < 6.0.5

    Update to 6.0.5

  • django PyPI

    Versions
    • 5.2
    • 5.2.1
    • 5.2.10
    • 5.2.11
    • 5.2.12
    • 5.2.13
    • 5.2.2
    • 5.2.3
    • 5.2.4
    • 5.2.5
    • 5.2.6
    • 5.2.7
    • 5.2.8
    • 5.2.9
    Affected ranges
    • ECOSYSTEM: ≥ 5.2, < 5.2.14

    Update to 5.2.14

  • django PyPI

    Versions
    • 5.2
    • 5.2.1
    • 5.2.10
    • 5.2.11
    • 5.2.12
    • 5.2.13
    • 5.2.2
    • 5.2.3
    • 5.2.4
    • 5.2.5
    • 5.2.6
    • 5.2.7
    • 5.2.8
    • 5.2.9
    • 6.0
    • 6.0.1
    • 6.0.2
    • 6.0.3
    • 6.0.4
    Affected ranges
    • ECOSYSTEM: ≥ 5.2, < 5.2.14 ∪ ≥ 6.0, < 6.0.5

    Update to 5.2.14; Update to 6.0.5

  • python-django Ubuntu:Pro:14.04:LTS

    Versions
    • 1.5.4-1ubuntu1
    • 1.6-1
    • 1.6.1-1
    • 1.6.1-2
    • 1.6.1-2ubuntu0.1
    • 1.6.1-2ubuntu0.2
    • 1.6.1-2ubuntu0.3
    • 1.6.1-2ubuntu0.4
    • 1.6.1-2ubuntu0.5
    • 1.6.1-2ubuntu0.6
    • 1.6.1-2ubuntu0.8
    • 1.6.1-2ubuntu0.9
    • 1.6.1-2ubuntu0.10
    • 1.6.1-2ubuntu0.11
    • 1.6.1-2ubuntu0.12
    • 1.6.1-2ubuntu0.13
    • 1.6.1-2ubuntu0.14
    • 1.6.1-2ubuntu0.15
    • 1.6.1-2ubuntu0.16
    • 1.6.11-0ubuntu1
    • 1.6.11-0ubuntu1.1
    • 1.6.11-0ubuntu1.2
    • 1.6.11-0ubuntu1.3
    • 1.6.11-0ubuntu1.3+esm1
    • 1.6.11-0ubuntu1.3+esm2
    • 1.6.11-0ubuntu1.3+esm3
    • 1.6.11-0ubuntu1.3+esm4
    • 1.6.11-0ubuntu1.3+esm5
    • 1.6.11-0ubuntu1.3+esm6
    • 1.6.11-0ubuntu1.3+esm7
    • 1.6.11-0ubuntu1.3+esm8
    • 1.6.11-0ubuntu1.3+esm9
    • 1.6.11-0ubuntu1.3+esm10
    • 1.6.11-0ubuntu1.3+esm11
    Affected ranges
    • ECOSYSTEM: < 1.6.11-0ubuntu1.3+esm12

    Update to 1.6.11-0ubuntu1.3+esm12

  • python-django Ubuntu:Pro:16.04:LTS

    Versions
    • 1.7.9-1ubuntu5
    • 1.8.5-2ubuntu1
    • 1.8.7-1ubuntu1
    • 1.8.7-1ubuntu2
    • 1.8.7-1ubuntu3
    • 1.8.7-1ubuntu4
    • 1.8.7-1ubuntu5
    • 1.8.7-1ubuntu5.1
    • 1.8.7-1ubuntu5.2
    • 1.8.7-1ubuntu5.4
    • 1.8.7-1ubuntu5.5
    • 1.8.7-1ubuntu5.6
    • 1.8.7-1ubuntu5.7
    • 1.8.7-1ubuntu5.8
    • 1.8.7-1ubuntu5.9
    • 1.8.7-1ubuntu5.10
    • 1.8.7-1ubuntu5.11
    • 1.8.7-1ubuntu5.12
    • 1.8.7-1ubuntu5.13
    • 1.8.7-1ubuntu5.14
    • 1.8.7-1ubuntu5.15
    • 1.8.7-1ubuntu5.15+esm1
    • 1.8.7-1ubuntu5.15+esm3
    • 1.8.7-1ubuntu5.15+esm4
    • 1.8.7-1ubuntu5.15+esm5
    • 1.8.7-1ubuntu5.15+esm6
    • 1.8.7-1ubuntu5.15+esm7
    • 1.8.7-1ubuntu5.15+esm8
    • 1.8.7-1ubuntu5.15+esm9
    • 1.8.7-1ubuntu5.15+esm10
    • 1.8.7-1ubuntu5.15+esm11
    • 1.8.7-1ubuntu5.15+esm12
    Affected ranges
    • ECOSYSTEM: < 1.8.7-1ubuntu5.15+esm13

    Update to 1.8.7-1ubuntu5.15+esm13

  • python-django Ubuntu:Pro:18.04:LTS

    Versions
    • 1:1.11.4-1ubuntu1
    • 1:1.11.6-1ubuntu1
    • 1:1.11.9-1ubuntu1
    • 1:1.11.11-1ubuntu1
    • 1:1.11.11-1ubuntu1.1
    • 1:1.11.11-1ubuntu1.2
    • 1:1.11.11-1ubuntu1.3
    • 1:1.11.11-1ubuntu1.4
    • 1:1.11.11-1ubuntu1.5
    • 1:1.11.11-1ubuntu1.6
    • 1:1.11.11-1ubuntu1.7
    • 1:1.11.11-1ubuntu1.8
    • 1:1.11.11-1ubuntu1.9
    • 1:1.11.11-1ubuntu1.10
    • 1:1.11.11-1ubuntu1.11
    • 1:1.11.11-1ubuntu1.12
    • 1:1.11.11-1ubuntu1.13
    • 1:1.11.11-1ubuntu1.14
    • 1:1.11.11-1ubuntu1.15
    • 1:1.11.11-1ubuntu1.16
    • 1:1.11.11-1ubuntu1.17
    • 1:1.11.11-1ubuntu1.18
    • 1:1.11.11-1ubuntu1.19
    • 1:1.11.11-1ubuntu1.20
    • 1:1.11.11-1ubuntu1.21
    • 1:1.11.11-1ubuntu1.21+esm1
    • 1:1.11.11-1ubuntu1.21+esm2
    • 1:1.11.11-1ubuntu1.21+esm3
    • 1:1.11.11-1ubuntu1.21+esm4
    • 1:1.11.11-1ubuntu1.21+esm5
    • 1:1.11.11-1ubuntu1.21+esm6
    • 1:1.11.11-1ubuntu1.21+esm7
    • 1:1.11.11-1ubuntu1.21+esm8
    • 1:1.11.11-1ubuntu1.21+esm9
    • 1:1.11.11-1ubuntu1.21+esm10
    • 1:1.11.11-1ubuntu1.21+esm11
    • 1:1.11.11-1ubuntu1.21+esm12
    • 1:1.11.11-1ubuntu1.21+esm13
    • 1:1.11.11-1ubuntu1.21+esm14
    • 1:1.11.11-1ubuntu1.21+esm15
    Affected ranges
    • ECOSYSTEM: < 1:1.11.11-1ubuntu1.21+esm17

    Update to 1:1.11.11-1ubuntu1.21+esm17

  • python-django Ubuntu:Pro:20.04:LTS

    Versions
    • 1:1.11.22-1ubuntu1
    • 2:2.2.6-1ubuntu1
    • 2:2.2.9-2ubuntu1
    • 2:2.2.10-1
    • 2:2.2.10-1ubuntu1
    • 2:2.2.11-1
    • 2:2.2.12-1
    • 2:2.2.12-1ubuntu0.1
    • 2:2.2.12-1ubuntu0.2
    • 2:2.2.12-1ubuntu0.3
    • 2:2.2.12-1ubuntu0.4
    • 2:2.2.12-1ubuntu0.5
    • 2:2.2.12-1ubuntu0.6
    • 2:2.2.12-1ubuntu0.7
    • 2:2.2.12-1ubuntu0.8
    • 2:2.2.12-1ubuntu0.9
    • 2:2.2.12-1ubuntu0.10
    • 2:2.2.12-1ubuntu0.11
    • 2:2.2.12-1ubuntu0.12
    • 2:2.2.12-1ubuntu0.13
    • 2:2.2.12-1ubuntu0.14
    • 2:2.2.12-1ubuntu0.15
    • 2:2.2.12-1ubuntu0.16
    • 2:2.2.12-1ubuntu0.17
    • 2:2.2.12-1ubuntu0.18
    • 2:2.2.12-1ubuntu0.19
    • 2:2.2.12-1ubuntu0.20
    • 2:2.2.12-1ubuntu0.21
    • 2:2.2.12-1ubuntu0.22
    • 2:2.2.12-1ubuntu0.23
    • 2:2.2.12-1ubuntu0.24
    • 2:2.2.12-1ubuntu0.25
    • 2:2.2.12-1ubuntu0.26
    • 2:2.2.12-1ubuntu0.27
    • 2:2.2.12-1ubuntu0.28
    • 2:2.2.12-1ubuntu0.29
    • 2:2.2.12-1ubuntu0.29+esm1
    • 2:2.2.12-1ubuntu0.29+esm2
    • 2:2.2.12-1ubuntu0.29+esm3
    • 2:2.2.12-1ubuntu0.29+esm4
    • 2:2.2.12-1ubuntu0.29+esm5
    • 2:2.2.12-1ubuntu0.29+esm6
    • 2:2.2.12-1ubuntu0.29+esm7
    • 2:2.2.12-1ubuntu0.29+esm8
    Affected ranges
    • ECOSYSTEM: < 2:2.2.12-1ubuntu0.29+esm10

    Update to 2:2.2.12-1ubuntu0.29+esm10

  • python-django Ubuntu:22.04:LTS

    Versions
    • 2:2.2.24-1ubuntu1
    • 2:3.2.12-2
    • 2:3.2.12-2ubuntu1
    • 2:3.2.12-2ubuntu1.1
    • 2:3.2.12-2ubuntu1.2
    • 2:3.2.12-2ubuntu1.3
    • 2:3.2.12-2ubuntu1.4
    • 2:3.2.12-2ubuntu1.5
    • 2:3.2.12-2ubuntu1.6
    • 2:3.2.12-2ubuntu1.7
    • 2:3.2.12-2ubuntu1.8
    • 2:3.2.12-2ubuntu1.9
    • 2:3.2.12-2ubuntu1.10
    • 2:3.2.12-2ubuntu1.11
    • 2:3.2.12-2ubuntu1.12
    • 2:3.2.12-2ubuntu1.13
    • 2:3.2.12-2ubuntu1.14
    • 2:3.2.12-2ubuntu1.15
    • 2:3.2.12-2ubuntu1.16
    • 2:3.2.12-2ubuntu1.17
    • 2:3.2.12-2ubuntu1.18
    • 2:3.2.12-2ubuntu1.19
    • 2:3.2.12-2ubuntu1.20
    • 2:3.2.12-2ubuntu1.21
    • 2:3.2.12-2ubuntu1.22
    • 2:3.2.12-2ubuntu1.23
    • 2:3.2.12-2ubuntu1.24
    • 2:3.2.12-2ubuntu1.25
    • 2:3.2.12-2ubuntu1.26
    Affected ranges
    • ECOSYSTEM: < 2:3.2.12-2ubuntu1.27

    Update to 2:3.2.12-2ubuntu1.27

  • python-django Ubuntu:24.04:LTS

    Versions
    • 3:4.2.4-1ubuntu2
    • 3:4.2.8-1
    • 3:4.2.9-1
    • 3:4.2.11-1
    • 3:4.2.11-1ubuntu1
    • 3:4.2.11-1ubuntu1.1
    • 3:4.2.11-1ubuntu1.2
    • 3:4.2.11-1ubuntu1.3
    • 3:4.2.11-1ubuntu1.4
    • 3:4.2.11-1ubuntu1.5
    • 3:4.2.11-1ubuntu1.6
    • 3:4.2.11-1ubuntu1.7
    • 3:4.2.11-1ubuntu1.8
    • 3:4.2.11-1ubuntu1.9
    • 3:4.2.11-1ubuntu1.10
    • 3:4.2.11-1ubuntu1.11
    • 3:4.2.11-1ubuntu1.12
    • 3:4.2.11-1ubuntu1.13
    • 3:4.2.11-1ubuntu1.14
    • 3:4.2.11-1ubuntu1.15
    Affected ranges
    • ECOSYSTEM: < 3:4.2.11-1ubuntu1.16

    Update to 3:4.2.11-1ubuntu1.16

  • python-django Ubuntu:25.10

    Versions
    • 3:4.2.18-1ubuntu1
    • 3:4.2.18-1ubuntu1.1
    • 3:5.2.4-1
    • 3:5.2.4-1ubuntu1
    • 3:5.2.4-1ubuntu2
    • 3:5.2.4-1ubuntu2.1
    • 3:5.2.4-1ubuntu2.2
    • 3:5.2.4-1ubuntu2.3
    • 3:5.2.4-1ubuntu2.4
    Affected ranges
    • ECOSYSTEM: < 3:5.2.4-1ubuntu2.5

    Update to 3:5.2.4-1ubuntu2.5

  • python-django Ubuntu:26.04:LTS

    Versions
    • 3:5.2.4-1ubuntu2
    • 3:5.2.4-1ubuntu3
    • 3:5.2.9-0ubuntu1
    • 3:5.2.9-0ubuntu2
    • 3:5.2.9-0ubuntu3
    • 3:5.2.9-0ubuntu4
    Affected ranges
    • ECOSYSTEM: < 3:5.2.9-0ubuntu4.1

    Update to 3:5.2.9-0ubuntu4.1

Original sources

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