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CVE-2026-16910

A flaw was found in Red Hat Quay's notification webhook feature. The Slack and generic webhook notification handlers accept user-supplied URLs without SSRF validation, allowing a repository administrator to make the Quay worker issue POST requests to internal network addresses or cloud infrastructure endpoints that should not be reachable from the application.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0700677f68563c8a1201073752c44115b4f097eb43d50f09835794a59f9dafb4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:quay:3"],"defaultStatus":"affected","packageName":"quay/quay-rhel9","product":"Red Hat Quay 3","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:quay:3"],"defaultStatus":"unknown","packageName":"quay/quay-rhel8","product":"Red Hat Quay 3","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift_update_service:5"],"defaultStatus":"affected","packageName":"openshift-update-service/openshift-update-service-rhel8","product":"Red Hat OpenShift Update Service","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/affected/0

Affected products and versions

3 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:quay:3"],"defaultStatus":"affected","packageName":"quay/quay-rhel9","product":"Red Hat Quay 3","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:quay:3"],"defaultStatus":"unknown","packageName":"quay/quay-rhel8","product":"Red Hat Quay 3","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift_update_service:5"],"defaultStatus":"affected","packageName":"openshift-update-service/openshift-update-service-rhel8","product":"Red Hat OpenShift Update Service","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-16910"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/references/0
{"name":"RHBZ#2506685","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506685"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3cfa915960ff8476216e0c40d9dc762af257e287af4d28bafa0dbee969a14779 · sha256:aa7c875f142533f8… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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