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CVE-2026-92719 – SSRF via SQS queue_url – Quickwit through 0.9.0

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Summary

CVE-2026-92719 is a Server-Side Request Forgery (SSRF) vulnerability affecting Quickwit, the open-source distributed search engine, through version 0.9.0. The flaw resides in the SQS file source configuration handling, where the queue_url parameter’s host and scheme are not validated, allowing an unauthenticated attacker to force a Quickwit node to issue requests to arbitrary internal addresses. The issue is rated High severity (CVSS 8.7).

Technical details

  • Root cause: The queue_url_endpoint() logic used to parse the queue_url parameter for SQS-backed sources relies on an overly permissive pattern that accepts any http(s)://host[:port] value without validating it against expected AWS SQS endpoints or blocking private/internal address ranges.
  • Trigger conditions: An attacker sends a request to the POST /api/v1/indexes/{index_id}/sources REST endpoint to create a new SQS file source, supplying a malicious queue_url pointing at an internal host or port. Affected code paths include the source resource handler, the index management connectivity check, and the SQS queue source’s endpoint extraction logic.
  • Attack vector: Network-based (AV:N), no privileges or user interaction required. Creating the source triggers a synchronous connectivity check that causes the node to make an outbound HTTP(S) request to the attacker-supplied endpoint before any configuration is persisted.
  • Impact: An attacker can direct the Quickwit node to connect to arbitrary internal or otherwise unreachable hosts and ports. Differences in error responses (service parse errors for open ports, connection-refused for closed ports, timeouts for filtered hosts) allow the attacker to fingerprint and enumerate internal network services, effectively enabling internal network reconnaissance from an externally reachable Quickwit instance. The vulnerability affects builds where the sqs source feature is enabled, which is the default in official release builds.

Affected software

  • Quickwit (quickwit-oss/quickwit): all versions through 0.9.0 (builds with the SQS source feature enabled, the default for official releases)

Severity

  • CVSS v4.0 Base Score: 8.7 (High)
  • Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Mitigation and recommended actions

  • Immediate: Check the official Quickwit repository and release notes for a fixed version addressing this issue and upgrade as soon as a patched release is available.
  • If no patch is available:
    • Disable the SQS file source feature if it is not required, to remove the vulnerable code path from the running node.
    • Restrict which users/systems can call the index/source management API (POST /api/v1/indexes/{index_id}/sources), since exploitation requires the ability to create a source.
    • Apply network-level egress filtering so the Quickwit node cannot reach internal management interfaces, cloud metadata endpoints, or other sensitive internal services.
    • Monitor outbound connection attempts from Quickwit nodes for requests to unexpected internal hosts/ports as an indicator of exploitation attempts.

References

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