CVE-2026-18632Proof of concept (PoC) published · CISA

langgenius dify Jinja2 jinja2_transformer.py jinja2.Template special elements used in a template engine

CVSS score

5.3

EPSS probability

%0.4

Risk score

0.0

Published

2 mo ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-18632 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

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.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-18632 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	langgenius	dify	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
6.5	CVSS V2	—	AV:N/AC:L/Au:S/C:P/I:P/A:P	NVD
6.5	CVSS V2_0	—	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	CVE CNA
6.3	CVSS V31	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L	NVD
6.3	CVSS V3_1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	CVE CNA
6.3	CVSS V3_0	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	CVE CNA
5.3	CVSS V4_0	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	CVE CNA
2.1	CVSS V40	LOW	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

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Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-18632 is associated with the following CWEs:

CWE-1336: Common Weakness Enumeration Entry CWE-1336 CWE-791: Common Weakness Enumeration Entry CWE-791

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-18632 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

VDB-385555 | langgenius dify Jinja2 jinja2_transformer.py jinja2.Template special elements used in a template enginevendor-advisory VDB-385555 | CTI Indicators (IOB, IOC, TTP, IOA)vendor-advisory CVE-2026-18632 | CVE Analysis and Reportvendor-advisory Submit #853188 | GitHub Dify 1.14.2 Injectionvendor-advisory https://github.com/CVE-Hunter-Leo/CVE/issues/14vendor-advisory

CVSS Vector Radar Chart

5.3 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)Low

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

langgenius

Weakness Type (CWE & CAPEC)

CWE-1336 CWE-791

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VendorlanggeniusProductdify

Patch status unknownEPSS %06 d ago

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