CVE-2021-44657
HIGH
8.8
CVSS Score
Published: December 15, 2021 at 02:28 PM UTC
Updated: June 17, 2026 at 04:12 AM UTC
1 product affected across 1 vendorStackStorm
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Severity
HIGH8.8
Exploit prediction
EPSS 3%
Description
In StackStorm versions prior to 3.6.0, the jinja interpreter was not run in sandbox mode and thus allows execution of unsafe system commands. Jinja does not enable sandboxed mode by default due to backwards compatibility. Stackstorm now sets sandboxed mode for jinja by default.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 3.6.0
Affected range stops below 3.6.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (4)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/StackStorm/st2/pull/5359x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/pallets/jinja/issues/549x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://podalirius.net/en/articles/python-vulnerabilities-code-execution-in-jinja-templates/x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://stackstorm.com/2021/12/16/stackstorm-v3-6-0-released/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-Other
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