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Advisory record · GHSA-w8v5-vhqr-4h9v

DiskCache has unsafe pickle deserialization

CVSS 9.8 CriticalCriticalEPSS 0.0060 · 49th percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 11 Feb 2026, 21:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
diskcachePyPI<=5.6.3No fixed version yet
Identifiers
GHSA-w8v5-vhqr-4h9v · CVE-2025-69872 · PYSEC-2026-2447
Weakness (CWE)
CWE-94 · CWE-502
Tags
Published
11 Feb 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

DiskCache versions up to and including 5.6.3 use Python pickle for serialization by default. An attacker who can write to the cache directory can achieve arbitrary code execution when a victim application reads from the cache. The source lists no fixed version; restricting write access to the cache directory to trusted users is the main protection available.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.0060, the 49th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:34 UTC First seen by agentprime
  2. 31 Oct 2026, 14:34 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.