Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-119716 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pybars3.md	CISA-ADP	AdvisoryExploitPartial Content
https://github.com/up9inc/pybars4	[email protected]
https://github.com/up9inc/pybars4/blob/0.9.13/pybars/_compiler.py#L153-L154	[email protected]
https://github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pybars3.md	[email protected]	AdvisoryExploitPartial Content
https://github.com/wbond/pybars3	[email protected]	Vendor
https://github.com/wbond/pybars3/blob/0.9.7/pybars/_compiler.py#L159-L160	[email protected]	Source CodeVendor
https://github.com/wbond/pybars3/issues/88	[email protected]	ExploitIssue TrackingTechnical DescriptionVendor
https://www.vulncheck.com/advisories/pybars3-through-0.9.7-code-injection-via-bracketed-path-segments	[email protected]	Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-94	Improper Control of Generation of Code ('Code Injection')	[email protected]

Affected Products

Product	Versions
pybars3	<= 0.9.7 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Nov 6, 2026	CVE Modified	CISA-ADP
Nov 2, 2026	CVE Modified	[email protected]
Oct 30, 2026	New CVE Received	[email protected]