CVE-2026-47845 (GCVE-0-2026-47845)

Vulnerability from cvelistv5 – Published: 2026-08-26 23:28 – Updated: 2026-08-26 23:28
VLAI
Title
Reactor Netty HTTP Server may incorrectly evaluate proxy addresses
Summary
In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Spring Reactor Netty Affected: 1.3.0 , ≤ 1.3.6 (custom)
Affected: 1.1.0 , ≤ 1.2.18 (custom)
Affected: 0 , ≤ 1.0.52 (custom)
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              "version": "1.1.0",
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        "dateUpdated": "2026-08-26T23:28:39.360Z",
        "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
        "shortName": "vmware"
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          "url": "https://spring.io/security/cve-2026-47845"
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      "source": {
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    "dateReserved": "2026-05-20T10:00:53.146Z",
    "dateUpdated": "2026-08-26T23:28:39.360Z",
    "state": "PUBLISHED"
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  }
}



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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

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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.
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  • 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.