Vulnerability-Lookup

OESA-2026-2287 (CVE-2026-34080)

Vulnerability from osv_openeuler – Published: 2026-05-15 11:11 – Updated: 2026-08-06 11:11 – Source website

Summary

xdg-dbus-proxy security update

Details

xdg-dbus-proxy is a filtering proxy for D-Bus connections. It was originally part of the flatpak project, but it has been broken out as a standalone module to facilitate using it in other contexts.

Security Fix(es):

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.(CVE-2026-34080)

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-34080	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "xdg-dbus-proxy-0.1.2-2.oe2203sp4.aarch64.rpm",
          "xdg-dbus-proxy-debuginfo-0.1.2-2.oe2203sp4.aarch64.rpm",
          "xdg-dbus-proxy-debugsource-0.1.2-2.oe2203sp4.aarch64.rpm"
        ],
        "noarch": [
          "xdg-dbus-proxy-help-0.1.2-2.oe2203sp4.noarch.rpm"
        ],
        "src": [
          "xdg-dbus-proxy-0.1.2-2.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "xdg-dbus-proxy-0.1.2-2.oe2203sp4.x86_64.rpm",
          "xdg-dbus-proxy-debuginfo-0.1.2-2.oe2203sp4.x86_64.rpm",
          "xdg-dbus-proxy-debugsource-0.1.2-2.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "xdg-dbus-proxy",
        "purl": "pkg:rpm/openEuler/xdg-dbus-proxy\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.2-2.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "xdg-dbus-proxy is a filtering proxy for D-Bus connections. It was originally part of the flatpak project, but it has been broken out as a standalone module to facilitate using it in other contexts.\r\n\r\nSecurity Fix(es):\n\nxdg-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 =\u0026apos;true\u0026apos; (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.(CVE-2026-34080)",
  "id": "OESA-2026-2287",
  "modified": "2026-08-06T11:11:15Z",
  "published": "2026-05-15T11:11:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2287"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34080"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "xdg-dbus-proxy security update",
  "upstream": [
    "CVE-2026-34080"
  ]
}

CVE-2026-34080 (GCVE-0-2026-34080)

Vulnerability from cvelistv5 – Published: 2026-04-07 20:57 – Updated: 2026-04-21 12:21

Title

xdg-dbus-proxy has an eavesdrop filter bypass allowing message interception

Summary

Severity

6.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-08 15:40 UTC

CWE

CWE-1289 - Improper Validation of Unsafe Equivalence in Input

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/flatpak/xdg-dbus-proxy/securit…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2026/0…
https://lists.debian.org/debian-lts-announce/2026…

Impacted products

1 product

Vendor	Product	Version
flatpak	xdg-dbus-proxy	Affected: < 0.1.7

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34080",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-08T15:40:24.515938Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-08T15:40:38.556Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-04-21T12:21:20.635Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/10/15"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00022.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "xdg-dbus-proxy",
          "vendor": "flatpak",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.1.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 =\u0027true\u0027 (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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1289",
              "description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-07T20:57:57.931Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677"
        }
      ],
      "source": {
        "advisory": "GHSA-vjp5-hjfm-7677",
        "discovery": "UNKNOWN"
      },
      "title": "xdg-dbus-proxy has an eavesdrop filter bypass allowing message interception"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-34080",
    "datePublished": "2026-04-07T20:57:57.931Z",
    "dateReserved": "2026-03-25T16:21:40.868Z",
    "dateUpdated": "2026-04-21T12:21:20.635Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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OESA-2026-2287 (CVE-2026-34080)

CVE-2026-34080 (GCVE-0-2026-34080)

Tags

Sightings

Nomenclature

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