CVE-2026-58485Network attack vectorHinoki check available

Internal service disclosure via DNS validation bypass

Published Sep 15, 2026 · Updated Sep 15, 2026

SSRF in web_url_read in Ihor Sokoliuk mcp-searxng 1.6.0 and earlier allows remote attackers to read internal HTTP services. assertUrlAllowed() checks only the literal hostname before undiciFetch() resolves DNS, so a public-looking name can resolve to a private address. Default unauthenticated HTTP deployments expose the path remotely; STDIO deployments require prompt-influenced tool invocation, and successful access discloses reachable internal data.

CVSS severity7.1
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

SSRF in web_url_read in Ihor Sokoliuk mcp-searxng 1.6.0 and earlier allows remote attackers to read internal HTTP services. assertUrlAllowed() checks only the literal hostname before undiciFetch() resolves DNS, so a public-looking name can resolve to a private address. Default unauthenticated HTTP deployments expose the path remotely; STDIO deployments require prompt-influenced tool invocation, and successful access discloses reachable internal data.

The record

CVE
CVE-2026-58485
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Ihor Sokoliuk
Product
mcp-searxng
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ihor Sokoliuk · mcp-searxngversion=< 1.7.1

Published CVSS scores

7.1GitHub Security AdvisoryCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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