libsoup security update

{
  "id": "6ac2ad3e46e644e8d4986236f92684052d135819b31a5970adc27cc16d30a85d",
  "url": "https://osv.dev/vulnerability/OESA-2026-4390",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libsoup security update",
    "summary": "libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fix(es): SoupAuthManager caches proxy authentication credentials without scoping them to the proxy authority (host:port). When the proxy configuration changes (e.g., via system settings or WPAD), cached Proxy-Authorization headers from the previous proxy are sent to the new proxy, leaking credentials.(CVE-2026-12547) A flaw was found in libsoup. An unsigned integer underflow in the soup_filter_input_stream_read_until() function causes a heap buffer over-read when parsing multipart HTTP responses. A malicious HTTP server can exploit this by sending a crafted multipart response, potentially causing the client application to crash or disclose sensitive heap memory.(CVE-2026-66337)",
    "evidence": "osv:OESA-2026-4390",
    "products": [
      {
        "name": {
          "value": "libsoup",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.74.3-29.oe2403sp3",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "OESA-2026-4390",
      "aliases": [
        "OESA-2026-4390"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.74.3-29.oe2403sp3"
                }
              ]
            }
          ],
          "package": {
            "name": "libsoup",
            "purl": "pkg:rpm/openEuler/libsoup&distro=openEuler-24.03-LTS-SP3",
            "ecosystem": "openEuler:24.03-LTS-SP3"
          },
          "database_specific": {
            "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4390.json"
          },
          "ecosystem_specific": {
            "src": [
              "libsoup-2.74.3-29.oe2403sp3.src.rpm"
            ],
            "noarch": [
              "libsoup-help-2.74.3-29.oe2403sp3.noarch.rpm"
            ],
            "x86_64": [
              "libsoup-2.74.3-29.oe2403sp3.x86_64.rpm",
              "libsoup-debuginfo-2.74.3-29.oe2403sp3.x86_64.rpm",
              "libsoup-debugsource-2.74.3-29.oe2403sp3.x86_64.rpm",
              "libsoup-devel-2.74.3-29.oe2403sp3.x86_64.rpm"
            ],
            "aarch64": [
              "libsoup-2.74.3-29.oe2403sp3.aarch64.rpm",
              "libsoup-debuginfo-2.74.3-29.oe2403sp3.aarch64.rpm",
              "libsoup-debugsource-2.74.3-29.oe2403sp3.aarch64.rpm",
              "libsoup-devel-2.74.3-29.oe2403sp3.aarch64.rpm"
            ]
          }
        }
      ],
      "modified": "2026-10-16T12:15:14.491496638Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-12547",
        "CVE-2026-66337"
      ],
      "references": [
        "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4390",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-12547",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-66337"
      ],
      "provider_metadata": {
        "severity": "Medium"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-12547",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-66337",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 340847,
  "published_at": "2026-10-16T12:00:05+00:00"
}