CVE-2026-119716: fallo crítico en wbond pybars3
pybars3 through 0.9.7 and pybars4 through 0.9.13 Code Injection via Bracketed Path Segments
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.3epss 0.5%
pybars3 through 0.9.7 and pybars4 through 0.9.13 contain a code injection vulnerability in pybars/_compiler.py that allows template authors to execute Python code via unescaped bracketed path segments. Attackers can supply Handlebars templates with crafted segments in helper or block arguments to break out of string literals and execute Python in the application process.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Referencias
https://github.com/up9inc/pybars4https://github.com/up9inc/pybars4/blob/0.9.13/pybars/_compiler.py#L153-L154https://github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pybars3.mdhttps://github.com/wbond/pybars3https://github.com/wbond/pybars3/blob/0.9.7/pybars/_compiler.py#L159-L160https://github.com/wbond/pybars3/issues/88https://www.vulncheck.com/advisories/pybars3-through-0.9.7-code-injection-via-bracketed-path-segments