CVE-2026-123653 - Vulnerability Details

- esengine DeepSeek-Reasonix doc.go discoverDocs llm prompting input

Description

A security vulnerability has been detected in esengine DeepSeek-Reasonix up to 2.52.0. Affected is the function discoverDocs of the file internal/memory/doc.go. The manipulation leads to improper neutralization of input used for llm prompting. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.53.0 is able to address this issue. The identifier of the patch is 4ca33493a673c2788aa8598fbca2b2f47a69e1b8. It is suggested to upgrade the affected component.

Published: 2026-11-06

Score: 5.3 Medium

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

Impact

A flaw in the internal/memory/doc.go discoverDocs function allows input that is not properly neutralized to be sent to the language model prompting engine. If an attacker supplies specially crafted data, the LLM may generate code or instructions that can be executed by the host, or otherwise manipulate the behavior of the system. The vulnerability could lead to unauthorized data exposure, tampering, or execution of malicious commands; it also undermines the integrity of generated responses.

Affected Systems

esengine DeepSeek‑Reasonix up to and including version 2.52.0 is impacted. The fix is available in release 2.53.0, identified by commit 4ca33493a673c2788aa8598fbca2b2f47a69e1b8.

Risk and Exploitability

The CVSS score of 5.3 indicates moderate severity. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. Attackers can trigger the flaw remotely, as the component exposes a network interface that accepts prompting input. Publicly disclosed evidence shows that exploits can be constructed, so timely patching is recommended.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

esengine

DeepSeek-Reasonix

affected

Version	Status	Constraints
`2.0`	affected	—
`2.1`	affected	—
`2.2`	affected	—
`2.3`	affected	—
`2.4`	affected	—
`2.5`	affected	—
`2.6`	affected	—
`2.7`	affected	—
`2.8`	affected	—
`2.9`	affected	—
`2.10`	affected	—
`2.11`	affected	—
`2.12`	affected	—
`2.13`	affected	—
`2.14`	affected	—
`2.15`	affected	—
`2.16`	affected	—
`2.17`	affected	—
`2.18`	affected	—
`2.19`	affected	—
`2.20`	affected	—
`2.21`	affected	—
`2.22`	affected	—
`2.23`	affected	—
`2.24`	affected	—
`2.25`	affected	—
`2.26`	affected	—
`2.27`	affected	—
`2.28`	affected	—
`2.29`	affected	—
`2.30`	affected	—
`2.31`	affected	—
`2.32`	affected	—
`2.33`	affected	—
`2.34`	affected	—
`2.35`	affected	—
`2.36`	affected	—
`2.37`	affected	—
`2.38`	affected	—
`2.39`	affected	—
`2.40`	affected	—
`2.41`	affected	—
`2.42`	affected	—
`2.43`	affected	—
`2.44`	affected	—
`2.45`	affected	—
`2.46`	affected	—
`2.47`	affected	—
`2.48`	affected	—
`2.49`	affected	—
`2.50`	affected	—
`2.51`	affected	—
`2.52.0`	affected	—
`2.53.0`	unaffected	—

No data.

Vendor Product Confidence Versions

Esengine

Deepseek-reasonix

95%

Version	Status	Scheme	Platform
`2.0`	affected	generic	—
`2.1`	affected	generic	—
`2.2`	affected	generic	—
`2.3`	affected	generic	—
`2.4`	affected	generic	—
`2.5`	affected	generic	—
`2.6`	affected	generic	—
`2.7`	affected	generic	—
`2.8`	affected	generic	—
`2.9`	affected	generic	—
`2.10`	affected	generic	—
`2.11`	affected	generic	—
`2.12`	affected	generic	—
`2.13`	affected	generic	—
`2.14`	affected	generic	—
`2.15`	affected	generic	—
`2.16`	affected	generic	—
`2.17`	affected	generic	—
`2.18`	affected	generic	—
`2.19`	affected	generic	—
`2.20`	affected	generic	—
`2.21`	affected	generic	—
`2.22`	affected	generic	—
`2.23`	affected	generic	—
`2.24`	affected	generic	—
`2.25`	affected	generic	—
`2.26`	affected	generic	—
`2.27`	affected	generic	—
`2.28`	affected	generic	—
`2.29`	affected	generic	—
`2.30`	affected	generic	—
`2.31`	affected	generic	—
`2.32`	affected	generic	—
`2.33`	affected	generic	—
`2.34`	affected	generic	—
`2.35`	affected	generic	—
`2.36`	affected	generic	—
`2.37`	affected	generic	—
`2.38`	affected	generic	—
`2.39`	affected	generic	—
`2.40`	affected	generic	—
`2.41`	affected	generic	—
`2.42`	affected	generic	—
`2.43`	affected	generic	—
`2.44`	affected	generic	—
`2.45`	affected	generic	—
`2.46`	affected	generic	—
`2.47`	affected	generic	—
`2.48`	affected	generic	—
`2.49`	affected	generic	—
`2.50`	affected	generic	—
`2.51`	affected	generic	—
`2.52.0`	affected	semver	—
`2.53.0`	unaffected	semver	—

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Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade to esengine DeepSeek‑Reasonix v2.53.0 or later, which contains a patched discoverDocs implementation.
Replace or modify the discoverDocs implementation to enforce explicit input sanitization before forwarding to the LLM, blocking unsupported characters or patterns that could trigger code generation.
If the application currently executes LLM output directly, disable that pipeline until a thorough audit is performed and introduce an approval step or audit trail for any commands generated by the LLM.

Generated by OpenCVE AI on November 6, 2026 at 15:01 UTC.

Tracking

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Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/esengine/DeepSeek-Reasonix/
https://github.com/esengine/DeepSeek-Reasonix/commit/4ca33493a673c2788aa8598fbca2b2f47a69e1b8
https://github.com/esengine/DeepSeek-Reasonix/issues/13061
https://github.com/esengine/DeepSeek-Reasonix/releases/tag/v2.53.0
https://github.com/esengine/DeepSeek-Reasonix/security/advisories/GHSA-7v48-x992-r5w7
https://github.com/ybyu-ieu/agent-security-advisories/blob/main/deepseek-reasonix/deepseek-reasonix-agents-md-prompt-injection-command-execution.md
https://vuldb.com/cve/CVE-2026-123653
https://vuldb.com/submit/1033134
https://vuldb.com/vuln/431772
https://vuldb.com/vuln/431772/cti

History

Fri, 06 Nov 2026 13:45:00 +0000

Type	Values Removed	Values Added
Description		A security vulnerability has been detected in esengine DeepSeek-Reasonix up to 2.52.0. Affected is the function discoverDocs of the file internal/memory/doc.go. The manipulation leads to improper neutralization of input used for llm prompting. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.53.0 is able to address this issue. The identifier of the patch is 4ca33493a673c2788aa8598fbca2b2f47a69e1b8. It is suggested to upgrade the affected component.
Title		esengine DeepSeek-Reasonix doc.go discoverDocs llm prompting input
First Time appeared		Esengine Esengine deepseek-reasonix
Weaknesses		CWE-1427 CWE-349
CPEs		cpe:2.3:a:esengine:deepseek-reasonix::::::::
Vendors & Products		Esengine Esengine deepseek-reasonix
References		https://github.com/esengine/DeepSeek-Reasonix/ https://github.com/esengine/DeepSeek-Reasonix/commit/4ca33493a673c2788aa8598fbca2b2f47a69e1b8 https://github.com/esengine/DeepSeek-Reasonix/issues/13061 https://github.com/esengine/DeepSeek-Reasonix/releases/tag/v2.53.0 https://github.com/esengine/DeepSeek-Reasonix/security/advisories/GHSA-7v48-x992-r5w7 https://github.com/ybyu-ieu/agent-security-advisories/blob/main/deepseek-reasonix/deepseek-reasonix-agents-md-prompt-injection-command-execution.md https://vuldb.com/cve/CVE-2026-123653 https://vuldb.com/submit/1033134 https://vuldb.com/vuln/431772 https://vuldb.com/vuln/431772/cti
Metrics		cvssV2_0 `{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C'}` cvssV3_0 `{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}` cvssV3_1 `{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}` cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}`

Subscriptions

Esengine Deepseek-reasonix

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-11-06T13:30:24.822Z

Updated: 2026-11-06T13:30:24.822Z

Reserved: 2026-11-06T08:28:48.613Z

Link: CVE-2026-123653

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2026-11-06T14:17:10.923

Modified: 2026-11-06T14:17:11.107

Link: CVE-2026-123653

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-11-06T15:45:04Z

Weaknesses

CWE-1427
Improper Neutralization of Input Used for LLM Prompting
CWE-349
Acceptance of Extraneous Untrusted Data With Trusted Data

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Subscriptions

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