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GHSA-qw48-84f6-28gv

HighCVSS 7.8 / 10
Published May 18, 2026·Last modified May 18, 2026
Affected Components(0)

No affected components available

Description

Impact

Type of vulnerability: Insecure Deserialization via Python's pickle module.

Who is impacted:
Users of Graphite graph database engine versions before 0.2 who load database files from untrusted or third-party sources.
An attacker could craft a malicious database file that executes arbitrary code when loaded by the engine. This is possible because the engine used pickle for serialization, which is known to be unsafe for untrusted data.

Patches

The vulnerability has been patched starting from version 0.2.
All users should upgrade to version 0.2 or later (the current version is 0.4 at publishing time).
In version 0.2 and above, the engine uses JSON instead of pickle for database storage, eliminating the deserialization risk.

Workarounds

If users cannot upgrade immediately:

  1. Do not load database files from untrusted or unknown sources when using versions <0.2.
  2. Migrate existing pickle-based databases to the new JSON format using the provided migration module:
from graphite.Migration import convert_pickle_to_json
convert_pickle_to_json("path/to/old_database.pkl", "path/to/new_database.json")

After migration, you can safely use the database with version 0.2+.

Note: Versions 0.2 and later will show a warning when attempting to load legacy pickle files, reminding you to migrate them. Also, you can't load pickle files in 0.2 and later.

Resources

Risk Scores
Base Score
7.8

The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
7.1

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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