CVE-2026-32591 (GCVE-0-2026-32591)
Vulnerability from cvelistv5 – Published: 2026-04-08 17:06 – Updated: 2026-09-10 12:05
VLAI
EPSS
VEX
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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 20:34 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
11 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/errata/RHSA-2026:43052 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:48085 | 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
11 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Red Hat | Red Hat Quay 3.10 |
Unaffected:
1783750447 , < *
(rpm)
cpe:/a:redhat:quay:3.10::el8 |
||
| Red Hat | Red Hat Quay 3.12 |
Unaffected:
1783751865 , < *
(rpm)
cpe:/a:redhat:quay:3.12::el8 |
||
| Red Hat | Red Hat Quay 3.12 |
Unaffected:
1784353904 , < *
(rpm)
cpe:/a:redhat:quay:3.12::el8 |
||
| Red Hat | Red Hat Quay 3.15 |
Unaffected:
1784351966 , < *
(rpm)
cpe:/a:redhat:quay:3.15::el8 |
||
| Red Hat | Red Hat Quay 3.16 |
Unaffected:
1783955846 , < *
(rpm)
cpe:/a:redhat:quay:3.16::el9 |
||
| Red Hat | Red Hat Quay 3.17 |
Unaffected:
1780604033 , < *
(rpm)
cpe:/a:redhat:quay:3.17::el9 |
||
| Red Hat | Red Hat Quay 3.18 |
Unaffected:
1784987273 , < *
(rpm)
cpe:/a:redhat:quay:3.18::el9 |
||
| Red Hat | Red Hat Quay 3.9 |
Unaffected:
1784125838 , < *
(rpm)
cpe:/a:redhat:quay:3.9::el8 |
||
| Red Hat | mirror registry for Red Hat OpenShift |
cpe:/a:redhat:mirror_registry:1
|
||
| Red Hat | mirror registry for Red Hat OpenShift 2 |
cpe:/a:redhat:mirror_registry:2
|
||
| Red Hat | Red Hat Quay 3.12 |
Unaffected:
1783751865 , < *
(rpm)
Unaffected: 1784353904 , < * (rpm) cpe:/a:redhat:quay:3.12::el8 |
Date Public
2026-04-08 00:00
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"cveMetadata": "{\"cveId\": \"CVE-2026-32591\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-10T12:05:07.380Z\", \"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",
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}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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