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Fencer Vulns
medium 6.5

CVE-2025-7777 json

Mirror-registry: host header injection in mirror-registry

published 2025-08-20 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-25272

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

The mirror-registry doesn't properly sanitize the host header HTTP header in HTTP request received, allowing an attacker to perform malicious redirects to attacker-controlled domains or phishing campaigns.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-7777 updated cvss 6.5

mirror-registry: host header injection in mirror-registry

  • Red Hat mirror registry for Red Hat OpenShift openshift/mirror-registry-rhel8
    affected: workaround, no fix available “There's currently no available mitigation for this issue.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
14 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

  • Red Hat mirror registry for Red Hat OpenShift

Classification

Weakness
  • CWE-601 URL Redirection to Untrusted Site

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.