CVE-2026-41195Public exploitNetwork attack vector

Internal HTTP probing via redirected rule URLs

Published May 12, 2026 · Updated May 12, 2026

Server-side request forgery in mosparo before 1.4.13 allows remote authenticated users to probe internal HTTP services through rule package URLs. The automatic rule package fetcher accepts editor-controlled source URLs, follows HTTP redirects, and does not block loopback or private destinations. An editor can retain a valid checksum URL, redirect the stored package URL internally, and distinguish HTTP outcomes from UI error messages without reading response bodies.

CVSS severity5.0
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in mosparo before 1.4.13 allows remote authenticated users to probe internal HTTP services through rule package URLs. The automatic rule package fetcher accepts editor-controlled source URLs, follows HTTP redirects, and does not block loopback or private destinations. An editor can retain a valid checksum URL, redirect the stored package URL internally, and distinguish HTTP outcomes from UI error messages without reading response bodies.

The record

CVE
CVE-2026-41195
Published
May 12, 2026
Updated
May 12, 2026
Vendor
mosparo
Product
mosparo
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 12, 2026CVE publishedPublication date reported by the CVE source.
  2. May 12, 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=< 1.4.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

mosparo · mosparoversion=< 1.4.13

Published CVSS scores

5.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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