Publish GHSA-527g-3w9m-29hv

Author: advisory-database[bot]

advisories/github-reviewed/2026/04/GHSA-527g-3w9m-29hv/GHSA-527g-3w9m-29hv.json

@@ -0,0 +1,58 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-527g-3w9m-29hv",
+  "modified": "2026-04-14T01:08:52Z",
+  "published": "2026-04-14T01:08:52Z",
+  "aliases": [],
+  "summary": "LDAP Injection in mitmproxy",
+  "details": "### Impact\nIn mitmproxy 12.2.1 and below, the builtin LDAP proxy authentication does not correctly sanitize the username when querying the LDAP server. This allows a malicious client to bypass authentication.\n\nOnly mitmproxy instances using the `proxyauth` option with LDAP are affected. This option is not enabled by default.\n\n### Patches\n\nThe vulnerability has been fixed in mitmproxy 12.2.2 and above.\n\n### Acknowledgements\n\nWe thank Yue (Knox) Liu (@yueyueL) for responsibly disclosing this vulnerability to the mitmproxy team.\n\n### Timeline\n\n- **2025-12-08**: Received initial report. \n- **2025-12-09**: Verified report and confirmed receipt.\n- **2026-01-02**: Informed researcher that patch will be part of the next regular patch release.\n- **2026-04-12**: Published patch release and advisory.",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "PyPI",
+        "name": "mitmproxy"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "12.2.2"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 12.2.1"
+      }
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-527g-3w9m-29hv"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/mitmproxy/mitmproxy"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-90"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-04-14T01:08:52Z",
+    "nvd_published_at": null
+  }
+}