HOMEVULNERABILITIESCVE-2026-34080
MEDIUM

CVE-2026-34080

CWE-1289Published: April 7, 2026· Updated: Apr 14, 2026

5.5
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:8.1th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-34080 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

flatpak1 product
xdg-dbus-proxy
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677
ADVISORYhttp://www.openwall.com/lists/oss-security/2026/04/10/15

All References (2)

→
https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677Vendor Advisory
→
http://www.openwall.com/lists/oss-security/2026/04/10/15Third Party Advisory

Quick Facts

CVE IDCVE-2026-34080
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-1289
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedApr 7, 2026

Related CVEs (CWE-1289)

CVE-2026-39821
9.6
CVE-2026-50090
9.3
CVE-2026-49942
7.3
CVE-2026-39972
7.1
CVE-2026-49940
6.5
CVE-2026-45190
6.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-34080 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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