CVE-2026-18632
CVE-2026-18632 — langgenius dify Jinja2 jinja2_transformer.py jinja2.Template special elements used in a template engine
A security flaw has been discovered in langgenius dify up to 1.14.2. This issue affects the function jinja2.Template of the file api/core/helper/code_executor/jinja2/jinja2_transformer.py of the component Jinja2 Handler. The manipulation results in improper neutralization of special elements used in a template engine. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published Updated Sources: cvelistV5, VulDB
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
0%
chance of exploitation in 30 days
CVSS base
6.3
MEDIUM
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
PoC
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 6.3 | CVSS 3.1 | MEDIUM | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-1336
- CWE-791
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Search application, proxy, and WAF logs for requests touching /core/helper/code_executor/jinja2/jinja2_transformer.py.
References
5 on the record
- vuldb.com/vuln/385555
vdb-entry, technical-description
- vuldb.com/vuln/385555/cti
signature, permissions-required
- vuldb.com/cve/CVE-2026-18632
third-party-advisory
- vuldb.com/submit/853188
third-party-advisory
- github.com/CVE-Hunter-Leo/CVE/issues/14
exploit, issue-tracking
Elsewhere on this site
- langgeniusevery CVE for this vendor
- CWE-1336other pages naming this weakness
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.