CVE-2023-27161Public exploitNetwork attack vector

Unauthenticated internal resource access via repository URL

Published Mar 10, 2023 · Updated Jul 9, 2026

Server-side request forgery in Jellyfin 10.7.7 and earlier allows remote attackers to access internal resources via a crafted POST request. The unauthenticated /Repositories API accepts an attacker-controlled Url value and directs the server to request that address, including a loopback destination. Network access to the API is sufficient to send requests from the server's network position, exposing reachable resources and sensitive information.

CVSS severity7.5
High
EPSS probability0.97%
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 Jellyfin 10.7.7 and earlier allows remote attackers to access internal resources via a crafted POST request. The unauthenticated /Repositories API accepts an attacker-controlled Url value and directs the server to request that address, including a loopback destination. Network access to the API is sufficient to send requests from the server's network position, exposing reachable resources and sensitive information.

The record

CVE
CVE-2023-27161
Published
Mar 10, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-918, T1090
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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?

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

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1090Proxy

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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