CVE-2026-34080 | flatpak xdg-dbus-proxy up to 0.1.6 improper validation of unsafe equivalence in input (GHSA-vjp5-hjfm-7677)

VDB-355940 · CVE-2026-34080 · GHSA-VJP5-HJFM-7677 FLATPAK XDG-DBUS-PROXY UP TO 0.1.6 IMPROPER VALIDATION OF UNSAFE EQUIVALENCE IN INPUT HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.2 $0-$5k 1.62 Summaryinfo A vulnerability was found in flatpak xdg-dbus-proxy up to 0.1.6 and classified as problematic. This affects an unknown part. Such manipulation leads to improper validation of unsafe equivalence in input. This vulnerability is referenced as CVE-2026-34080. The attack can only be performed from a local environment. No exploit is available. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in flatpak xdg-dbus-proxy up to 0.1.6. It has been rated as problematic. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a improper validation of unsafe equivalence in input vulnerability. Using CWE to declare the problem leads to CWE-1289. The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value. Impacted is confidentiality. CVE summarizes: xdg-dbus-proxy is a filtering proxy for D-Bus connections. Prior to 0.1.7, a policy parser vulnerability allows bypassing eavesdrop restrictions. The proxy checks for eavesdrop=true in policy rules but fails to handle eavesdrop ='true' (with a space before the equals sign) and similar cases. Clients can intercept D-Bus messages they should not have access to. This vulnerability is fixed in 0.1.7. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-34080 since 03/25/2026. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. Upgrading to version 0.1.7 eliminates this vulnerability. Productinfo Type Firewall Software Vendor flatpak Name xdg-dbus-proxy Version 0.1.0 0.1.1 0.1.2 0.1.3 0.1.4 0.1.5 0.1.6 Website Product: https://github.com/flatpak/xdg-dbus-proxy/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 3.3 VulDB Meta Temp Score: 3.2 VulDB Base Score: 3.3 VulDB Temp Score: 3.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Improper validation of unsafe equivalence in input CWE: CWE-1289 / CWE-20 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: xdg-dbus-proxy 0.1.7 Timelineinfo 03/25/2026 CVE reserved 04/07/2026 +12 days Advisory disclosed 04/07/2026 +0 days VulDB entry created 04/07/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-vjp5-hjfm-7677 Status: Confirmed CVE: CVE-2026-34080 (🔒) GCVE (CVE): GCVE-0-2026-34080 GCVE (VulDB): GCVE-100-355940 Entryinfo Created: 04/07/2026 23:29 Changes: 04/07/2026 23:29 (67) Complete: 🔍 Cache ID: 99:056:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸