CVE-2026-7774
A remote, anonymous attacker can exploit a vulnerability in CPython to manipulate files.
CSIRTS triage
- What
- A vulnerability allows a remote, anonymous attacker to manipulate files.
- Who is affected
- Deployments of CPython are affected.
- Urgency
- Remediation is medium urgency due to the potential for file manipulation.
- Action
- Update to the latest version of CPython.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.60% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[UPDATE] [medium] CPython: Vulnerability allows file manipulationcert-bund · 2026-08-25
- unknownUSN-8509-1: Python vulnerabilitiesubuntu · 2026-07-06
- unknownCVE-2026-7774: tarfile.data_filter path traversal bypass allows writing outside the extraction directorymsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-7774)