---
id: "CVE-2026-59583"
page: "https://infrastack.ai/live/CVE-2026-59583"
kind: "vulnerability"
aliases: ["CVE-2026-59583"]
title: "Android SIP helper: scheme downgrade exposes authentication credentials in cleartext"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["android", "other", "sip"]
not_affected_if: []
published_at: "2026-11-10T20:19:29+00:00"
first_seen_at: "2026-11-10T20:46:12+00:00"
updated_at: "2026-11-10T20:50:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59583", "first_seen_at": "2026-11-10T20:46:12+00:00"}]
exploit_sources: []
---

# Android SIP helper: scheme downgrade exposes authentication credentials in cleartext

Link for people: https://infrastack.ai/live/CVE-2026-59583 (this .md is for agents)

A flaw in the SIP authentication helper code (SipAuHelper.cpp, FormCredentials) lets a scheme downgrade expose authentication credentials in cleartext. An attacker on the network could read those credentials remotely, and no user interaction is needed.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T20:46:12+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-59583

## From the sources

In FormCredentials of SipAuHelper.cpp, there is a possible way to disclose authentication credentials in cleartext via a scheme downgrade due to improper input validation. This could lead to remote information disclosure with System execution privileges needed. User interaction is not needed for exploitation.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_