RLSA-2026:80512 (CVE-2026-10536)

Vulnerability from osv_rocky – Published: 2026-10-15 00:08 – Updated: 2026-10-15 00:12 – Source website
VLAI
Summary
Moderate: curl security update
Details

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

  • curl: curl: Proxy credential disclosure via redirects to unauthenticated proxies (CVE-2026-6253)

  • curl: libcurl: Authentication bypass due to incorrect HTTP Negotiate connection reuse (CVE-2026-5545)

  • curl: libcurl: Credential leak via reused proxy connection during HTTP redirects (CVE-2026-6429)

  • curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse (CVE-2026-7168)

  • libcurl: libcurl: Use-after-free vulnerability leading to Denial of Service (CVE-2026-10536)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Credits
Rocky Enterprise Software Foundation
Red Hat
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "curl",
        "purl": "pkg:rpm/rocky-linux/curl?distro=rocky-linux-10\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:8.12.1-4.el10_2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:80512"
  },
  "details": "The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.\n\nSecurity Fix(es):\n\n* curl: curl: Proxy credential disclosure via redirects to unauthenticated proxies (CVE-2026-6253)\n\n* curl: libcurl: Authentication bypass due to incorrect HTTP Negotiate connection reuse (CVE-2026-5545)\n\n* curl: libcurl: Credential leak via reused proxy connection during HTTP redirects (CVE-2026-6429)\n\n* curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse (CVE-2026-7168)\n\n* libcurl: libcurl: Use-after-free vulnerability leading to Denial of Service (CVE-2026-10536)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "RLSA-2026:80512",
  "modified": "2026-10-15T00:12:39.722085Z",
  "published": "2026-10-15T00:08:46.966634Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:80512"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461202"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461204"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461205"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476979"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2496766"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:80512"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Moderate: curl security update",
  "upstream": [
    "CVE-2026-10536",
    "CVE-2026-5545",
    "CVE-2026-6253",
    "CVE-2026-6429",
    "CVE-2026-7168"
  ]
}



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