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4 vulnerabilities found for xorg-x11-server by X.org
CVE-2026-88812 (GCVE-0-2026-88812)
Vulnerability from nvd – Published: 2026-10-27 17:43 – Updated: 2026-10-27 17:43
VLAI
EPSS
VEX
Title
X.Org Server XKB SetGeometry TextDoodad Double Free
Summary
A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to cause a crash or potentially code in the x server context.
Severity
7.8 (High)
CWE
- CWE-415 - Double free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/xserver/-/com… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| X.org | xorg-x11-server |
Affected:
0 , < 21.1.25
(rpm)
cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:* |
|
| x.org | xwayland |
Affected:
0 , < 24.1.14
(rpm)
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* |
Date Public
2026-10-27 16:47
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CVE-2026-56000 (GCVE-0-2026-56000)
Vulnerability from nvd – Published: 2026-07-08 07:36 – Updated: 2026-07-08 12:42
VLAI
EPSS
VEX
Title
xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
Summary
Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 12:41 UTC
CWE
- CWE-416 - Use after free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/xserver/-/com… | patch |
| https://www.openwall.com/lists/oss-security/2026/… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| X.Org | xorg-x11-server |
Affected:
0 , < 21.1.24
(rpm)
|
|
| X.Org | xwayland |
Affected:
0 , < 24.1.13
(rpmver)
|
Date Public
2026-07-08 07:30
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CVE-2026-88812 (GCVE-0-2026-88812)
Vulnerability from cvelistv5 – Published: 2026-10-27 17:43 – Updated: 2026-10-27 17:43
VLAI
EPSS
VEX
Title
X.Org Server XKB SetGeometry TextDoodad Double Free
Summary
A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to cause a crash or potentially code in the x server context.
Severity
7.8 (High)
CWE
- CWE-415 - Double free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/xserver/-/com… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| X.org | xorg-x11-server |
Affected:
0 , < 21.1.25
(rpm)
cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:* |
|
| x.org | xwayland |
Affected:
0 , < 24.1.14
(rpm)
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* |
Date Public
2026-10-27 16:47
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CVE-2026-56000 (GCVE-0-2026-56000)
Vulnerability from cvelistv5 – Published: 2026-07-08 07:36 – Updated: 2026-07-08 12:42
VLAI
EPSS
VEX
Title
xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
Summary
Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 12:41 UTC
CWE
- CWE-416 - Use after free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/xserver/-/com… | patch |
| https://www.openwall.com/lists/oss-security/2026/… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| X.Org | xorg-x11-server |
Affected:
0 , < 21.1.24
(rpm)
|
|
| X.Org | xwayland |
Affected:
0 , < 24.1.13
(rpmver)
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Date Public
2026-07-08 07:30
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"url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/2779affbdb4354e894f490e56f962527d6125043"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.openwall.com/lists/oss-security/2026/07/08/2"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
"assignerShortName": "suse",
"cveId": "CVE-2026-56000",
"datePublished": "2026-07-08T07:36:15.357Z",
"dateReserved": "2026-06-18T09:26:55.988Z",
"dateUpdated": "2026-07-08T12:42:16.061Z",
"state": "PUBLISHED"
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