CVE-2026-8497: Devolutions Password Manager Info Leak Flaw

CVE-2026-8497 Overview

CVE-2026-8497 is an improper certificate validation vulnerability [CWE-295] in Devolutions Password Manager 2026.2.1.0 and earlier on Android, iOS, and macOS. The flaw resides in the Devolutions Server connection handling logic. An adjacent-network attacker can present a forged TLS certificate to intercept and modify sensitive information transmitted between the mobile or desktop client and the Devolutions Server. Successful exploitation compromises the confidentiality and integrity of stored credentials and vault communications. Devolutions published advisory DEVO-2026-0027 documenting the issue and the fixed release.

Critical Impact
An attacker on an adjacent network can perform a man-in-the-middle attack against Devolutions Password Manager clients and capture or tamper with password vault traffic.

Affected Products

Devolutions Password Manager for Android, versions 2026.2.1.0 and earlier
Devolutions Password Manager for iOS, versions 2026.2.1.0 and earlier
Devolutions Password Manager for macOS, versions 2026.2.1.0 and earlier

Discovery Timeline

2026-07-29 - CVE-2026-8497 published to the National Vulnerability Database (NVD)
2026-07-29 - Last updated in NVD database

Technical Details for CVE-2026-8497

Vulnerability Analysis

The vulnerability stems from improper validation of the X.509 certificate presented by the Devolutions Server during TLS session establishment. The client fails to verify one or more critical certificate attributes such as the issuer chain, hostname binding, or trust anchor. As a result, a forged or attacker-controlled certificate is accepted as valid. Once trust is established, the attacker sits transparently between the client and the legitimate Devolutions Server. All vault operations, including authentication, credential retrieval, and entry updates, flow through the attacker's proxy. Both confidentiality and integrity of the encrypted channel collapse. The issue affects the Android, iOS, and macOS clients that share the same connection handling code path.

Root Cause

The root cause is a defect in the TLS certificate validation routine used by the Devolutions Server client connector [CWE-295]. Standard chain-of-trust or hostname verification is either skipped, misconfigured, or overridden. Certificate pinning is not enforced, so any certificate accepted by the platform trust store, or by a compromised trust decision, is treated as authoritative.

Attack Vector

Exploitation requires adjacent network access, low privileges, and user interaction. The attacker must reach the same logical network segment as the victim, such as a shared Wi-Fi network, corporate LAN, or VPN broadcast domain. The attacker then performs ARP spoofing, DHCP manipulation, DNS poisoning, or rogue access point techniques to redirect client traffic. The client initiates a TLS handshake, receives the forged certificate, and proceeds without alerting the user. Sensitive Devolutions Server traffic is then intercepted and can be modified in transit.

No verified public proof-of-concept code is available. Refer to the Devolutions Security Advisory DEVO-2026-0027 for vendor-supplied technical details.

Detection Methods for CVE-2026-8497

Indicators of Compromise

Unexpected TLS certificates presented for Devolutions Server hostnames, especially certificates signed by unusual or newly added certificate authorities
ARP table anomalies, duplicate MAC-to-IP mappings, or rogue DHCP responses observed on segments where Devolutions Password Manager clients operate
Unexplained connections from Devolutions Password Manager clients to IP addresses that do not resolve to the sanctioned Devolutions Server

Detection Strategies

Inspect network telemetry for TLS handshakes to Devolutions Server endpoints and alert on certificate fingerprints that deviate from a known-good baseline
Correlate mobile device management (MDM) inventory data to identify Devolutions Password Manager builds at or below 2026.2.1.0
Hunt for adjacent-network attacker tradecraft such as ettercap, bettercap, or mitmproxy process artifacts on managed endpoints sharing the network segment

Monitoring Recommendations

Enable certificate transparency monitoring for domains hosting Devolutions Server instances
Log and review outbound TLS Server Name Indication (SNI) values from client subnets to detect redirection to attacker-controlled hosts
Alert on Devolutions Password Manager authentication events originating from unexpected geolocations or network paths

How to Mitigate CVE-2026-8497

Immediate Actions Required

Upgrade Devolutions Password Manager on Android, iOS, and macOS to a release later than 2026.2.1.0 as identified in advisory DEVO-2026-0027
Restrict Devolutions Password Manager usage on untrusted networks until all clients are patched
Require corporate VPN or zero-trust network access for mobile clients connecting to Devolutions Server

Patch Information

Devolutions has released a fixed version of Devolutions Password Manager. Review the Devolutions Security Advisory DEVO-2026-0027 for the specific patched build numbers for Android, iOS, and macOS, and deploy through your enterprise mobility management platform.

Workarounds

Enforce use of a trusted VPN so that Devolutions Server traffic does not traverse shared or untrusted local networks
Deploy network access controls and 802.1X on corporate LAN and Wi-Fi to reduce the ability of adjacent-network attackers to inject rogue devices
Educate users to refuse certificate warnings and to report unexpected authentication prompts within the Devolutions client

bash

# Example: block Devolutions Password Manager on non-compliant devices via MDM
# Pseudocode policy expression
if app.bundleId in ["com.devolutions.passwordmanager"] \
   and app.version <= "2026.2.1.0":
    action = "block_launch"
    notify_user = "Update Devolutions Password Manager to remediate CVE-2026-8497"