Vulnerability in Edgewall *Genshi* Genshi

CVE-2026-0685

Server side template inject (SSTI) in the expression evaluation component in Genshi Template Engine version 0.7.9 allows a remote attacker to achieve remote code execution (RCE) via crafted template expressions.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

References

Frequently asked questions

What is CVE-2026-0685?
CVE-2026-0685 is a critical-severity vulnerability in Edgewall *Genshi* Genshi, classified under CWE-94 IMPROPER CONTROL OF GENERATION OF CODE ('CODE INJECTION'). CVSS score: 9.8/10. Published 2026-06-26.
How severe is CVE-2026-0685?
Critical severity. CVSS v3 base score is 9.8 out of 10.