CVE-2022-26505Network attack vector

Media-file disclosure via unchecked Host header

Published Mar 6, 2022 · Updated Aug 3, 2024

DNS rebinding in ReadyMedia before 1.3.1 allows remote attackers to exfiltrate media files through a victim's web browser. The UPnP HTTP request handler accepts hostname-based Host headers without validation, letting rebinding redirect browser requests to the local DLNA service. The victim must visit an attacker-controlled web server while the service is locally reachable; the attacker can list and download shared media.

CVSS severity7.4
High
EPSS probability1.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DNS rebinding in ReadyMedia before 1.3.1 allows remote attackers to exfiltrate media files through a victim's web browser. The UPnP HTTP request handler accepts hostname-based Host headers without validation, letting rebinding redirect browser requests to the local DLNA service. The victim must visit an attacker-controlled web server while the service is locally reachable; the attacker can list and download shared media.

The record

CVE
CVE-2022-26505
Published
Mar 6, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-290
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:N
7.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-290Authentication Bypass by Spoofing

Public exploit references

No public exploit references are available in this record.

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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