{"id":"CVE-2026-119717","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-119717","summary":"pybars4 through 0.9.13 contains a code injection vulnerability in pybars/_compiler.py that allows attackers to execute Python code via unescaped bracketed path segments in Handlebars…","details":"pybars4 through 0.9.13 contains a code injection vulnerability in pybars/_compiler.py that allows attackers to execute Python code via unescaped bracketed path segments in Handlebars templates. Attackers can supply a template with a crafted segment in a helper or block argument to break out of the generated resolve() string literal and execute code in the application process.","published":"2026-10-30T16:17:55.170","modified":"2026-10-30T16:17:55.170","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/up9inc/pybars4"},{"type":"WEB","url":"https://github.com/up9inc/pybars4/blob/0.9.13/pybars/_compiler.py#L153-L154"},{"type":"WEB","url":"https://github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pybars3.md"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/pybars4-through-0.9.13-code-injection-via-bracketed-path-segments"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-30T16:17:55.170"}}