What is CVE-2026-23968?

CVE-2026-23968 is a medium-severity vulnerability in Copier-org Copier, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 5.5/10. Published 2026-01-21.

How severe is CVE-2026-23968?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Copier-org Copier

CVE-2026-23968

Copier is a library and CLI app for rendering project templates. Prior to version 9.11.2, Copier suggests that it's safe to generate a project from a safe template, i.e. one that doesn't use unsafe features like custom Jinja extensions whi…

EPSS: 0.002 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Copier-org Copier — versions < 9.11.2

Weakness classification (CWE)

CWE-61 — UNIX Symbolic Link (Symlink) Following

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-23968?: CVE-2026-23968 is a medium-severity vulnerability in Copier-org Copier, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 5.5/10. Published 2026-01-21.
How severe is CVE-2026-23968?: Medium severity. CVSS v3 base score is 5.5 out of 10.