CVE-2025-3026Network attack vector

Client redirection via unvalidated Host header

Published Mar 31, 2025 · Updated Mar 31, 2025

Host-header injection in PrimeKey Solutions AB EJBCA Enterprise 8.0 allows remote attackers to redirect clients to an attacker-controlled URL. EJBCA uses the unvalidated HTTP Host header as the base authority when it constructs links returned to the client. Exploitation requires the client to follow a generated link, allowing subsequent requests to reach a server under attacker control.

CVSS severity5.1
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Host-header injection in PrimeKey Solutions AB EJBCA Enterprise 8.0 allows remote attackers to redirect clients to an attacker-controlled URL. EJBCA uses the unvalidated HTTP Host header as the base authority when it constructs links returned to the client. Exploitation requires the client to follow a generated link, allowing subsequent requests to reach a server under attacker control.

The record

CVE
CVE-2025-3026
Published
Mar 31, 2025
Updated
Mar 31, 2025
Vendor
PrimeKey Solutions AB
Product
EJBCA
Classifications
CWE-74
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PrimeKey Solutions AB · EJBCAversion=8.0

Published CVSS scores

6.1INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1INCIBE-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA: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-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo