CVE-2019-8341
Publication date 15 February 2019
Last updated 4 August 2025
Ubuntu priority
Description
An issue was discovered in Jinja2 2.10. The from_string function is prone to Server Side Template Injection (SSTI) where it takes the "source" parameter as a template object, renders it, and then returns it. The attacker can exploit it with {{INJECTION COMMANDS}} in a URI. NOTE: The maintainer and multiple third parties believe that this vulnerability isn't valid because users shouldn't use untrusted templates without sandboxing
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| jinja2 | ||
| 18.04 LTS bionic | Ignored rejected by upstream | |
| 16.04 LTS xenial | Ignored rejected by upstream | |
| 14.04 LTS trusty | Ignored rejected by upstream |
Notes
leosilva
further discussions about this CVE says it's a invalid one. A reject was already sent to MITRE.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
9.8 · Critical
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |