FKIE_CVE-2026-9079

Vulnerability from fkie_nvd - Published: 2026-07-03 07:16 - Updated: 2026-07-03 07:16
Severity ?
Summary
libcurl had a flaw that when instructed to clear proxy authentication credentials which made it not do so, leaving the old credentials around to get used for subsequent transfers that should not know nor use them.
References
2499f714-1537-4658-8207-48ae4bb9eae9https://curl.se/docs/CVE-2026-9079.html
2499f714-1537-4658-8207-48ae4bb9eae9https://curl.se/docs/CVE-2026-9079.json
2499f714-1537-4658-8207-48ae4bb9eae9https://hackerone.com/reports/3750295
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.20.0",
              "status": "affected",
              "version": "8.20.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "libcurl had a flaw that when instructed to clear proxy authentication\ncredentials which made it not do so, leaving the old credentials around to get\nused for subsequent transfers that should not know nor use them."
    }
  ],
  "id": "CVE-2026-9079",
  "lastModified": "2026-07-03T07:16:25.620",
  "metrics": {},
  "published": "2026-07-03T07:16:25.620",
  "references": [
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "url": "https://curl.se/docs/CVE-2026-9079.html"
    },
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "url": "https://curl.se/docs/CVE-2026-9079.json"
    },
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "url": "https://hackerone.com/reports/3750295"
    }
  ],
  "sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
  "vulnStatus": "Received"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.