CVE-2026-34352

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Source
https://cve.org/CVERecord?id=CVE-2026-34352
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-34352.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-34352
Downstream
Related
Published
2026-03-26T22:30:46.928Z
Modified
2026-06-20T08:11:41.436240Z
Severity
  • 8.5 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L CVSS Calculator
Summary
[none]
Details

In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions.

Database specific 
{
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-732"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34352.json"
}
References

Affected packages

Git / github.com/tigervnc/tigervnc

Affected ranges

Type
GIT
Repo
https://github.com/tigervnc/tigervnc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b555312d70d7ff017f866649a7e7167af4eb8fca
Fixed
0b5cab169d847789efa54459a87659d3fd484393
Database specific 
{
    "cpe": "cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.16.2"
        }
    ]
}

Affected versions

v0.*
v0.0.90
v1.*
v1.1.90
v1.15.90
v1.16.0
v1.16.1

Database specific

vanir_signatures 
[
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "168159989987394180244965269388051027972",
                "252990462059640665620154540408848481533",
                "138750095314693944014020199048865348535",
                "183371219017403905911438349548147757054"
            ]
        },
        "id": "CVE-2026-34352-1144882d",
        "signature_type": "Line",
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://github.com/tigervnc/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393",
        "target": {
            "file": "unix/x0vncserver/Image.cxx"
        }
    },
    {
        "digest": {
            "function_hash": "200210064560606103723482966746360593478",
            "length": 1896.0
        },
        "id": "CVE-2026-34352-e857f7ba",
        "signature_type": "Function",
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://github.com/tigervnc/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393",
        "target": {
            "file": "unix/x0vncserver/Image.cxx",
            "function": "ShmImage::Init"
        }
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-34352.json"
vanir_signatures_modified 
"2026-06-20T08:11:41Z"