CVE-2026-27170Network attack vector

Authenticated internal-resource probing via unchecked URL fetches

Published Feb 20, 2026 · Updated Feb 20, 2026

SSRF in OpenSift before 1.1.3-alpha allows remote authenticated users to probe private network resources through URL ingest. The URL ingestion logic in backend/app/ingest.py fetches attacker-controlled destinations without blocking localhost, private, link-local, or reserved addresses and without revalidating each redirect hop. A low-privileged account and network reachability to the ingest endpoint are required; successful requests expose only resources reachable from the OpenSift host, with no reported service interruption.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in OpenSift before 1.1.3-alpha allows remote authenticated users to probe private network resources through URL ingest. The URL ingestion logic in backend/app/ingest.py fetches attacker-controlled destinations without blocking localhost, private, link-local, or reserved addresses and without revalidating each redirect hop. A low-privileged account and network reachability to the ingest endpoint are required; successful requests expose only resources reachable from the OpenSift host, with no reported service interruption.

The record

CVE
CVE-2026-27170
Published
Feb 20, 2026
Updated
Feb 20, 2026
Vendor
OpenSift
Product
OpenSift
Classifications
CWE-918, CWE-20, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 20, 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=< 1.1.3-alpha

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenSift · OpenSiftversion=< 1.1.3-alpha

Published CVSS scores

7.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CWE-20Improper Input Validation
T1046Network Service Discovery

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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