CVE-2026-119716
highpybars3 through 0.9.7 contains a code injection vulnerability in pybars/_compiler.py that allows template authors to execute Python code via unescaped brackete…
pybars3 through 0.9.7 contains 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
8.1
8.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-30 16:17
Modified: 2026-10-30 19:23
NVD status: Deferred
Last synced 17 hours ago
Verified against the source API 2026-10-30 19:54 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pyba... disclosure@vulncheck.com
- https://github.com/wbond/pybars3 disclosure@vulncheck.com
- https://github.com/wbond/pybars3/blob/0.9.7/pybars/_compiler.py#L159-L160 disclosure@vulncheck.com
- https://github.com/wbond/pybars3/issues/88 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/pybars3-through-0.9.7-code-injection-via-bracketed-pa... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 19:54 UTC · record ↗