Quick answers
- Is CVE-2026-123653 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-123653 being exploited in the wild.
- How severe is CVE-2026-123653?
- Medium severity, with a CVSS score of 6.3, published 6 November 2026.
- Which products and versions are affected?
- Esengine DeepSeek-Reasonix up to 2.52.0.
- Is there a fix for CVE-2026-123653?
- Yes: fixed in 2.53.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-123653 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-123653?
- Check whether you run Esengine DeepSeek-Reasonix at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 2.53.0
Technical details
The vulnerability is an improper neutralization of input used for LLM prompting in the discoverDocs function of internal/memory/doc.go. The flaw allows remote attackers to inject untrusted instructions that influence LLM behavior without authentication or user interaction required. An attacker can exploit this to manipulate the agent's responses or cause it to perform unintended actions.
Affected products
- esengine DeepSeek-Reasonix up to 2.52.0
Timeline
- 2026-11-06: disclosed