CVE-2025-69872: DiskCache has unsafe pickle deserialization

February 11, 2026 (updated February 12, 2026)

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.

References

github.com/EthanKim88/ethan-cve-disclosures/blob/main/CVE-2025-69872-DiskCache-Pickle-Deserialization.md
github.com/advisories/GHSA-w8v5-vhqr-4h9v
github.com/grantjenks/python-diskcache
nvd.nist.gov/vuln/detail/CVE-2025-69872

Code Behaviors & Features

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