CVE-2024-0937: Deserialization of untrusted data in synthcity

Should you act?

Normal patch cycle

No exploitation signal; fix it in your next routine update if you are affected. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
• EPSS 0.7%, percentile 52: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 52% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
• Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
• Only applies if your dependency tree includes synthcity (PyPI) <= 0.2.9, no fixed version listed. Check your lockfile, including transitive dependencies.

What it is

A vulnerability, which was classified as critical, has been found in vanderSchaar LAB synthcity 0.2.9. Affected by this issue is the function loadfromfile of the component PKL File Handler. The manipulation leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-252182 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early and confirmed immediately the existence of the issue. A patch is planned to be released in February 2024.

From the GitHub advisory

A vulnerability, which was classified as critical, has been found in vanderSchaar LAB synthcity 0.2.9. Affected by this issue is the function loadfromfile of the component PKL File Handler. The manipulation leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-252182 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early and confirmed immediately the existence of the issue. A patch is planned to be released in February 2024.

Weakness type: CWE-502.

Product: synthcity (PyPI) · Assigned by: VulDB · Published: 2024-01-26

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: none (no login)
• User interaction: required (a user must click/open something)
• Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
• FIRST EPSS (model of 2026-10-21): 0.68% probability of exploitation activity in the next 30 days; percentile 52.

Timeline

• 2024-01-26 — CVE record published by VulDB
• 2024-01-26 — GitHub-reviewed advisory GHSA-4957-7vhp-7v59 published (critical)
• 2024-10-18 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

1. GitHub Advisory GHSA-4957-7vhp-7v59 github.com
2. CVE.org record CVE-2024-0937 cve.org
3. NVD entry CVE-2024-0937 nvd.nist.gov

Other references from the CVE record and advisory

1. vuldb.com vuldb.com
2. vuldb.com vuldb.com
3. github.com github.com
4. github.com github.com
5. github.com github.com

Critical PyPI advisories · Today’s Security Digest