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CVE

CVE-2026-40104

XWiki's REST APIs can list all pages/spaces, leading to unavailability
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CVE

CVE-2026-40104

XWiki's REST APIs can list all pages/spaces, leading to unavailability

Impact

REST API endpoints like /xwiki/rest/wikis/xwiki/spaces/AnnotationCode/pages/AnnotationConfig/objects/AnnotationCode.AnnotationConfig/0/properties list all available pages as part of the metadata for database list properties, which can exhaust available resources on large wikis.

Patches

This problem has been patched by applying the configured query limit also to the available values for database list properties in XWiki 16.10.16, 17.4.8 and 17.10.1.

Workarounds

We're not aware of any workarounds apart from upgrading the affected modules.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
6.9
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-mrqg-xmgm-rc5g, https://nvd.nist.gov/vuln/detail/CVE-2026-40104, https://github.com/xwiki/xwiki-platform/commit/47b568c4753a6e682b14be1ca581bdd3b25d45a7, https://github.com/xwiki/xwiki-platform, https://jira.xwiki.org/browse/XWIKI-23550

Severity

8.2

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.2
EPSS Probability
0.00071%
EPSS Percentile
0.21879%
Introduced Version
1.8-rc-1,17.0.0-rc-1,17.5.0-rc-1
Fix Available
16.10.16,17.4.8,17.10.1

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