CVE-2026-46607
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
Glances is a system monitoring tool that prior to version 4.5.5 used pickle.load() to read a version-check cache file. The lack of integrity checks and format validation before deserialization allows an attacker with access to this file to plant a malicious pickle file, leading to arbitrary code execution.
Risk Assessment
An attacker with access to the file path can exploit this vulnerability to execute malicious code as the operating system user, posing a significant security risk.
Recommendation
It is recommended to update Glances to version 4.5.5 or later to mitigate this vulnerability and to restrict access to the cache directory.
Other vulnerabilities in Glances
See all- CVE-2026-68520Medium
Glances before 4.5.6 has a vulnerability in as_dict_secure() in glances/config.py that checks only option names and exposes public_username and credentials embedded in public_api values through unauthenticated GET /api/4/config and GET /api/4/config/ip requests.
- CVE-2026-68519High
Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, GlancesActions.run() in glances/actions.py ignores --disable-config-exec for on-alert action commands and invokes secure_popen() with shell operators enabled, allowing configured redirection, command chaining, or pipes to execute when an alert triggers. This issue is fixed in 4.5.6.
- CVE-2026-62982High
Glances is an open-source system cross-platform monitoring tool. From 4.5.2 until 4.5.6, _sanitize_mustache_dict() in glances/actions.py skips nested list and dictionary strings such as process cmdline values, allowing pipe characters to survive chevron.render() and be executed by secure_popen() through administrator-configured action templates. This issue is fixed in 4.5.6.
- CVE-2026-68518High
Glances before version 4.5.6 has a vulnerability in _sanitize_mustache_dict() in glances/actions.py that sanitizes individual Mustache values before chevron.render(), allowing adjacent unescaped Mustache variables to reconstruct shell operators that secure_popen() executes when attacker-controlled process or container fields are rendered by an administrator-configured action template. This issue is fixed in 4.5.6.
- CVE-2026-68517Medium
Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, the cors_origins guard in glances/outputs/glances_restful_api.py uses exact list equality instead of wildcard membership, allowing a multi-origin list containing the wildcard to retain cors_credentials and expose authenticated REST API data to an untrusted website visited by a previously authenticated user. This issue is fixed in 4.5.6.
- CVE-2026-53925High
Glances is a system monitoring tool that, from versions 4.0.8 to 4.5.5, has a vulnerability in the secure_popen() function. This function interprets redirection, pipe, and command chaining operators without validation, allowing unauthorized actions on the system.
Original NVD description (English source)
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.