id: PYSEC-2026-2447
published: "2026-07-13T14:36:36.004443Z"
modified: "2026-07-13T16:03:51.854995Z"
aliases:
- CVE-2025-69872
- GHSA-w8v5-vhqr-4h9v
summary: DiskCache has unsafe pickle deserialization
details: DiskCache (python-diskcache) through 5.6.3 uses Python pickle for serialization by default. An attacker with write access to the cache directory can achieve arbitrary code execution when a victim application reads from the cache.
affected:
- package:
    name: diskcache
    ecosystem: PyPI
    purl: pkg:pypi/diskcache
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - last_affected: 5.6.3
  versions:
  - 0.1.0
  - 0.1.2
  - 0.1.3
  - 0.1.4
  - 0.1.5
  - 0.1.6
  - 0.1.7
  - 0.1.8
  - 0.2.0
  - 0.2.1
  - 0.2.10
  - 0.2.2
  - 0.2.3
  - 0.2.4
  - 0.2.6
  - 0.2.7
  - 0.2.8
  - 0.2.9
  - 0.3.0
  - 0.3.1
  - 0.4.0
  - 0.5.0
  - 0.6.0
  - 0.7.0
  - 0.7.1
  - 0.9.0
  - 1.0.0
  - 1.1.0
  - 1.2.0
  - 1.3.1
  - 1.3.3
  - 1.3.4
  - 1.3.5
  - 1.4.0
  - 1.5.0
  - 1.5.2
  - 1.5.3
  - 1.6.0
  - 1.6.1
  - 1.6.2
  - 1.6.3
  - 1.6.4
  - 1.6.5
  - 1.6.6
  - 1.6.7
  - 1.7.0
  - 2.0.2
  - 2.1.0
  - 2.2.0
  - 2.3.0
  - 2.3.1
  - 2.4.0
  - 2.4.1
  - 2.5.1
  - 2.5.2
  - 2.6.0
  - 2.6.4
  - 2.6.5
  - 2.7.0
  - 2.8.2
  - 2.8.3
  - 2.9.0
  - 3.0.0
  - 3.0.1
  - 3.0.3
  - 3.0.4
  - 3.0.5
  - 3.0.6
  - 3.1.0
  - 3.1.1
  - 4.0.0
  - 4.1.0
  - 5.0.0
  - 5.0.1
  - 5.0.2
  - 5.0.3
  - 5.1.0
  - 5.2.1
  - 5.3.0
  - 5.4.0
  - 5.5.1
  - 5.6.0
  - 5.6.1
  - 5.6.3
references:
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2025-69872
- type: WEB
  url: https://github.com/EthanKim88/ethan-cve-disclosures/blob/main/CVE-2025-69872-DiskCache-Pickle-Deserialization.md
- type: PACKAGE
  url: https://github.com/grantjenks/python-diskcache
- type: PACKAGE
  url: https://pypi.org/project/diskcache
- type: ADVISORY
  url: https://github.com/advisories/GHSA-w8v5-vhqr-4h9v
severity:
- type: CVSS_V4
  score: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P