CVE-2026-109904

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Source
https://cve.org/CVERecord?id=CVE-2026-109904
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109904.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109904
Downstream
BELL (1)
DEBIAN (1)
ECHO (1)
openSUSE (2)
SUSE (2)
UBUNTU (1)
Related
openSUSE (2)
SUSE (2)
Published
2026-11-13T10:27:48Z
Modified
2026-11-14T07:06:01Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
X.Org Server XRes QueryClientIds Request Size Overflow
Details

A buffer overread caused by an integer-overflow in Proc/SProcXResQueryClientIds in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by attackers on authenticated X clients to crash the server or leak out information.

Database specific 
{
    "cna_assigner": "suse",
    "cwe_ids": [
        "CWE-126"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109904.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "21.1.26"
                        },
                        {
                            "fixed": "24.1.15"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "21.1.26"
                        },
                        {
                            "fixed": "24.1.15"
                        }
                    ],
                    "source": "CPE_FIELD",
                    "strategy": "CPEApplicability"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "24.1.15"
                        },
                        {
                            "fixed": "21.1.26"
                        }
                    ],
                    "source": "DESCRIPTION"
                }
            ]
        }
    ]
}
References

Affected packages

Git / gitlab.freedesktop.org/xorg/xserver

Affected ranges

Type
GIT
Repo
https://gitlab.freedesktop.org/xorg/xserver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ff754b812597177412f2e2fa2b1dd1eecbeb75cf
Fixed
a3899d75e180d73f2971af2a402e6fdf19c0339c
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "ff754b812597177412f2e2fa2b1dd1eecbeb75cf"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "a3899d75e180d73f2971af2a402e6fdf19c0339c"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

Other
DRI-XFree86-4_3_99_12-merge
DRI-trunk-20040613
DRI-trunk-20040721
DRM-1_0_5
DRM-20040613
DRM-20040721
DRM-20050615
DRM-20051017
DRM-2_0_0
Domain-base
Domain-sync1
Domain-sync2
Domain-sync3
Domain-sync4
MODULAR_COPY
PRE_xf86-4_3_0_1
XACE-SELINUX-MERGE
XORG-6_7_99_1
XORG-6_7_99_2
XORG-6_7_99_901
XORG-6_7_99_902
XORG-6_7_99_903
XORG-6_7_99_904
XORG-6_8_0
XORG-6_8_99_1
XORG-6_8_99_10
XORG-6_8_99_11
XORG-6_8_99_12
XORG-6_8_99_13
XORG-6_8_99_14
XORG-6_8_99_15
XORG-6_8_99_16
XORG-6_8_99_2
XORG-6_8_99_3
XORG-6_8_99_4
XORG-6_8_99_5
XORG-6_8_99_6
XORG-6_8_99_7
XORG-6_8_99_8
XORG-6_8_99_9
XORG-6_8_99_900
XORG-6_8_99_901
XORG-6_8_99_902
XORG-6_8_99_903
XORG-6_99_99_900
XORG-6_99_99_901
XORG-6_99_99_902
XORG-6_99_99_903
XORG-6_99_99_904
XORG-7_0
XORG-7_0_99_901
XORG-MAIN
add-Xi
ah-20021030
ah-20021030-postdri
before-mesa-4_0-import
dhd-20010328
dhd-20010817
dhd-20020916
dri-0-1-branchpoint
dri-20020129-merge
dri-20020222-merge
kdrive-initial-import
keithp
lg3d-base
pre-R651-import
pre-xgldrop-merge
sco_port_update-base
xf-3_9_16Z
xf-3_9_16Za
xf-3_9_16d
xf-3_9_16e
xf-3_9_16f
xf-3_9_17
xf-3_9_17Z
xf-3_9_17a
xf-3_9_17b
xf-3_9_17c
xf-3_9_17d
xf-3_9_17e
xf-3_9_17f
xf-3_9_18
xf-3_9_18Z
xf-3_9_18Za
xf-3_9_18a
xf-3_9_18b
xf-4_0
xf-4_0-bindist
xf-4_0Z
xf-4_0_1
xf-4_0_1-bindist
xf-4_0_1Z
xf-4_0_1Za
xf-4_0_1Zb
xf-4_0_1Zc
xf-4_0_1a
xf-4_0_1b
xf-4_0_1c
xf-4_0_1d
xf-4_0_1e
xf-4_0_1f
xf-4_0_1g
xf-4_0_1h
xf-4_0_2
xf-4_0_2-bindist
xf-4_0_99_1
xf-4_0_99_2
xf-4_0_99_3
xf-4_0_99_900
xf-4_0a
xf-4_0b
xf-4_0c
xf-4_0d
xf-4_0e
xf-4_0f
xf-4_0g
xf-4_1_99_1
xf-4_1_99_2
xf-4_1_99_3
xf-4_1_99_4
xf-4_1_99_5
xf-4_1_99_6
xf-4_1_99_7
xf-4_2-bp
xf-4_2_0
xf-4_2_0-bindist
xf-4_2_0-bindist-1
xf-4_2_0_1
xf-4_2_1
xf-4_2_1_1
xf-4_2_99_1
xf-4_2_99_2
xf-4_2_99_3
xf-4_2_99_4
xf-4_2_99_901
xf-4_2_99_902
xf-4_3_0
xf-4_3_0_1
xf-4_3_99_1
xf-4_3_99_2
xf-4_3_99_3
xf-4_3_99_4
xf-4_3_99_5
xf-4_3_99_6
xf86-012804-2330
xf86-4_3_0_1
xf86-4_3_99_16
xf86-4_3_99_901
xf86-4_3_99_902
xf86-4_3_99_903
xf86-4_3_99_903_special
xf86-4_4_0
xf86-4_4_99_1
xfixes_2_branchpoint
xorg-server-0_99_1
xorg-server-1_0_99_1
xorg-server-1_0_99_2
xorg-server-1_0_99_901
xorg-server-1_1_99_1
xorg-server-1_1_99_2
server-26.*
server-26.1-branchpoint
xorg-server-1.*
xorg-server-1.1.99.3
xorg-server-1.10.0
xorg-server-1.10.99.901
xorg-server-1.10.99.902
xorg-server-1.11.0
xorg-server-1.11.99.1
xorg-server-1.11.99.901
xorg-server-1.11.99.902
xorg-server-1.11.99.903
xorg-server-1.12.0
xorg-server-1.12.99.901
xorg-server-1.12.99.902
xorg-server-1.12.99.903
xorg-server-1.12.99.904
xorg-server-1.12.99.905
xorg-server-1.13.0
xorg-server-1.13.99.901
xorg-server-1.13.99.902
xorg-server-1.14.0
xorg-server-1.14.99.1
xorg-server-1.14.99.2
xorg-server-1.14.99.3
xorg-server-1.14.99.901
xorg-server-1.14.99.902
xorg-server-1.14.99.903
xorg-server-1.14.99.904
xorg-server-1.14.99.905
xorg-server-1.15.0
xorg-server-1.15.99.901
xorg-server-1.15.99.902
xorg-server-1.15.99.903
xorg-server-1.15.99.904
xorg-server-1.16.0
xorg-server-1.16.99.901
xorg-server-1.16.99.902
xorg-server-1.17.0
xorg-server-1.17.99.901
xorg-server-1.17.99.902
xorg-server-1.18.0
xorg-server-1.18.99.2
xorg-server-1.18.99.901
xorg-server-1.18.99.902
xorg-server-1.19.0
xorg-server-1.19.99.901
xorg-server-1.19.99.902
xorg-server-1.19.99.903
xorg-server-1.19.99.904
xorg-server-1.19.99.905
xorg-server-1.20.0
xorg-server-1.5.99.1
xorg-server-1.6.99.900
xorg-server-1.6.99.901
xorg-server-1.7.99.1
xorg-server-1.7.99.2
xorg-server-1.7.99.901
xorg-server-1.7.99.902
xorg-server-1.8.0
xorg-server-1.8.99.901
xorg-server-1.8.99.902
xorg-server-1.8.99.903
xorg-server-1.8.99.904
xorg-server-1.8.99.905
xorg-server-1.8.99.906
xorg-server-1.9.0
xorg-server-1.9.99.901
xorg-server-1.9.99.902
xorg-server-1.9.99.903
xorg-server-21.*
xorg-server-21.0.99.1
xorg-server-21.0.99.901
xorg-server-21.0.99.902
xorg-server-21.1.0
xorg-server-21.1.1
xorg-server-21.1.10
xorg-server-21.1.11
xorg-server-21.1.12
xorg-server-21.1.13
xorg-server-21.1.14
xorg-server-21.1.15
xorg-server-21.1.16
xorg-server-21.1.17
xorg-server-21.1.18
xorg-server-21.1.19
xorg-server-21.1.2
xorg-server-21.1.20
xorg-server-21.1.21
xorg-server-21.1.22
xorg-server-21.1.23
xorg-server-21.1.24
xorg-server-21.1.25
xorg-server-21.1.3
xorg-server-21.1.4
xorg-server-21.1.5
xorg-server-21.1.6
xorg-server-21.1.7
xorg-server-21.1.8
xorg-server-21.1.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109904.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "189055601496879394726767597121965996680",
                "61252641284731541362805314579838983035",
                "298912088253386219961167848734453950729",
                "318418183743156659003548233595417058454",
                "121962287668769154286936773621838866211",
                "323615648509245281611726738569225498489",
                "190413116959071968596023068339235346816",
                "193973848292550419542169124077023043679",
                "207781653775631082179062900763057683112",
                "306018522621693694289582915128506955266",
                "292369582199491420861080298271621120776"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-109904-000379d5",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://gitlab.freedesktop.org/xorg/xserver@a3899d75e180d73f2971af2a402e6fdf19c0339c",
        "target": {
            "file": "Xext/xres.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "147971217166850971572012839056574378779",
            "length": 837
        },
        "id": "CVE-2026-109904-4d4b0263",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://gitlab.freedesktop.org/xorg/xserver@a3899d75e180d73f2971af2a402e6fdf19c0339c",
        "target": {
            "file": "Xext/xres.c",
            "function": "ProcXResQueryClientIds"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "30079849087068761670251954483438750774",
            "length": 180
        },
        "id": "CVE-2026-109904-5da08e4c",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://gitlab.freedesktop.org/xorg/xserver@a3899d75e180d73f2971af2a402e6fdf19c0339c",
        "target": {
            "file": "Xext/xres.c",
            "function": "SProcXResQueryClientIds"
        }
    }
]
vanir_signatures_modified 
"2026-11-14T07:06:01Z"