CVE-2023-45143 (GCVE-0-2023-45143)

Vulnerability from cvelistv5 – Published: 2023-10-12 16:35 – Updated: 2025-02-13 17:13
VLAI
Title
Undici's cookie header not cleared on cross-origin redirect in fetch
Summary
Undici is an HTTP/1.1 client written from scratch for Node.js. Prior to version 5.26.2, Undici already cleared Authorization headers on cross-origin redirects, but did not clear `Cookie` headers. By design, `cookie` headers are forbidden request headers, disallowing them to be set in RequestInit.headers in browser environments. Since undici handles headers more liberally than the spec, there was a disconnect from the assumptions the spec made, and undici's implementation of fetch. As such this may lead to accidental leakage of cookie to a third-party site or a malicious attacker who can control the redirection target (ie. an open redirector) to leak the cookie to the third party site. This was patched in version 5.26.2. There are no known workarounds.
Severity
3.9 (Low)
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-17 13:10 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version CPE status
nodejs undici Affected: < 5.26.2
guessed Create a notification for this product.
Show details on NVD website
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    "redhat_vex": {
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      "current_release_date": "2026-06-26T09:30:15+00:00",
      "cve": "CVE-2023-45143",
      "id": "CVE-2023-45143",
      "initial_release_date": "2023-10-12T00:00:00+00:00",
      "product_status:fixed": "94",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "node-undici: cookie leakage",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-45143.json",
      "version": "3"
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      "current_release_date": "2025-09-29T00:12:27Z",
      "cve": "CVE-2023-45143",
      "id": "CVE-2023-45143",
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      "product_status:known_not_affected": "338",
      "product_status:recommended": "243",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-45143",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-45143.json",
      "version": "17"
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      "cveMetadata": "{\"cveId\": \"CVE-2023-45143\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T17:13:50.221Z\", \"dateReserved\": \"2023-10-04T16:02:46.330Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-10-12T16:35:40.637Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
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    }
  }
}



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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.