CVE-2026-32591 (GCVE-0-2026-32591)

Vulnerability from cvelistv5 – Published: 2026-04-08 17:06 – Updated: 2026-07-21 13:58
VLAI
Title
Mirror-registry: quay: server-side request forgery in proxy cache upstream registry configuration
Summary
A flaw was found in Red Hat Quay's Proxy Cache configuration feature. When an organization administrator configures an upstream registry for proxy caching, Quay makes a network connection to the specified registry hostname without verifying that it points to a legitimate external service. An attacker with organization administrator privileges could supply a crafted hostname to force the Quay server to make requests to internal network services, cloud infrastructure endpoints, or other resources that should not be accessible from the Quay application.
Severity
5.2 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:24833 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:40262 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:41031 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:41066 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42146 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42796 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-32591 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2446965 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
Impacted products
Vendor Product Version
Red Hat Red Hat Quay 3.1 Unaffected: 1783750447 , < * (rpm)
    cpe:/a:redhat:quay:3.10::el8
 Create a notification for this product.
Red Hat Red Hat Quay 3.12 Unaffected: 1783751865 , < * (rpm)
    cpe:/a:redhat:quay:3.12::el8
 Create a notification for this product.
Red Hat Red Hat Quay 3.15 Unaffected: 1784351966 , < * (rpm)
    cpe:/a:redhat:quay:3.15::el8
 Create a notification for this product.
Red Hat Red Hat Quay 3.16 Unaffected: 1783955846 , < * (rpm)
    cpe:/a:redhat:quay:3.16::el9
 Create a notification for this product.
Red Hat Red Hat Quay 3.17 Unaffected: 1780604033 , < * (rpm)
    cpe:/a:redhat:quay:3.17::el9
 Create a notification for this product.
Red Hat Red Hat Quay 3.9 Unaffected: 1784125838 , < * (rpm)
    cpe:/a:redhat:quay:3.9::el8
 Create a notification for this product.
Red Hat mirror registry for Red Hat OpenShift     cpe:/a:redhat:mirror_registry:1
 Create a notification for this product.
Red Hat mirror registry for Red Hat OpenShift 2     cpe:/a:redhat:mirror_registry:2
 Create a notification for this product.
Date Public
2026-04-08 00:00
Credits
Red Hat would like to thank Antony Di Scala and Michael Whale for reporting this issue.
Show details on NVD website
To clipboard 

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\"RHSA-2026:42796\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2026-32591\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2446965\", \"name\": \"RHBZ#2446965\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in Red Hat Quay\u0027s Proxy Cache configuration feature. When an organization administrator configures an upstream registry for proxy caching, Quay makes a network connection to the specified registry hostname without verifying that it points to a legitimate external service. An attacker with organization administrator privileges could supply a crafted hostname to force the Quay server to make requests to internal network services, cloud infrastructure endpoints, or other resources that should not be accessible from the Quay application.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-918\", \"description\": \"Server-Side Request Forgery (SSRF)\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-07-21T13:58:04.202Z\"}, \"x_redhatCweChain\": \"CWE-918: Server-Side Request Forgery (SSRF)\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-32591\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-21T13:58:04.202Z\", \"dateReserved\": \"2026-03-12T14:39:53.657Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-04-08T17:06:58.222Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.