{
  "cveId": "CVE-2025-48994",
  "url": "https://patchblox.com/security/cve/CVE-2025-48994",
  "summary": "CVE-2025-48994 is fixed in python-signxml on 1 platform, first by DEBIAN-CVE-2025-48994, released June 2, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "python-signxml: SignXML is an implementation of the W3C XML Signature standard in Python",
  "description": "SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set (\u0060signxml.XMLVerifier.verify(require_x509=False, hmac_key=...\u0060), versions of SignXML prior to 4.0.4 are vulnerable to a potential algorithm confusion attack. Unless the user explicitly limits the expected signature algorithms using the \u0060signxml.XMLVerifier.verify(expect_config=...)\u0060 setting, an attacker may supply a signature unexpectedly signed with a key other than the provided HMAC key, using a different (asymmetric key) signature algorithm. Starting with SignXML 4.0.4, specifying \u0060hmac_key\u0060 causes the set of accepted signature algorithms to be restricted to HMAC only, if not already restricted by the user.",
  "published": "2025-06-02T17:15:40Z",
  "severity": "",
  "epss": 0.00228,
  "epssPercentile": 0.13705,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-signxml",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.0.5\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2025-48994",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-48994",
      "released": "2025-06-02T17:15:40Z"
    },
    {
      "platform": "linux",
      "product": "python-signxml",
      "release": "Debian 14",
      "fixedVersion": "4.0.5\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2025-48994",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-48994",
      "released": "2025-06-02T17:15:40Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}