Is CVE-2026-34526 actively exploited?

No active exploitation of CVE-2026-34526 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34526 be exploited remotely?

Yes. CVE-2026-34526 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34526?

CVE-2026-34526 has a CVSS score of 5.0 (MEDIUM).

HOME VULNERABILITIESCVE-2026-34526

MEDIUM

CVE-2026-34526

CWE-918Published: April 2, 2026· Updated: Apr 3, 2026

5.0

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:6.9th

Official Description

SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to version 1.17.0, in src/endpoints/search.js, the hostname is checked against /^\d+\.\d+\.\d+\.\d+$/. This only matches literal dotted-quad IPv4 (e.g. 127.0.0.1, 10.0.0.1). It does not catch: localhost (hostname, not dotted-quad), [::1] (IPv6 loopback), and DNS names resolving to internal addresses (e.g. localtest.me -> 127.0.0.1). A separate port check (urlObj.port !== '') limits exploitation to services on default ports (80/443), making this lower severity than a fully unrestricted SSRF. This issue has been patched in version 1.17.0.

NVD Source

Technical Analysis

CVE-2026-34526 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.